roulette probability formula. We would like to show you a description here but the site won’t allow us. roulette probability formula

 
We would like to show you a description here but the site won’t allow usroulette probability formula  Is the roulette calculator probability formula accurate enough that we should take it seriously? It is important to keep in mind that the number of pockets on a roulette wheel does not change from spin to spin

If you play 19 numbers in 2 consecutive roulette spins, the probability to win at least once is 75%. The probability calculated for the pick-3 game. Sorted by: 3. Example (The probability of Red) The probability of the ball landing in Red is. The probability of all bets in roulette can be calculated by simple counting. If A and B are mutually exclusive then the union of this term is 0. For each roll, the probability of landing on red is equal to 18 38 = 9 19 18 38 = 9 19. 2. Scaled the fitness list to the range [0, 1] 3. 02 = 1. The probability to win is 18=37, and the probability to loose is obtained by conditioning on the rst spin P( lose ) = P( lose jblack )P( black ) + P( lose jP1 )P( P1 ) = 1 18 37 + 19 37 1 37 = 0:50036523(1) Monte-Carlo roulette (2st version) is played as in the 1st version but with a second prison (P2). Logically, the answer to that challenge is p = ½ = 0. Most losing systems focus on patterns the player thinks they see. For example, they might see 5 reds in a row and assume red is on a streak. 34 + 2*0. 090. The probability of an event is a number between 0 and 1, where, roughly speaking, 0 indicates impossibility of the event and 1 indicates certainty. Hence your expected gain/loss doubles. =1, to the mind: (5) Since the probability of winning Pwin in the 'European Roulette' while you are playing for N sectors (rooms) is equal to. 1667, or 16. 89% chance of guessing the winning number. Make such a bet when gambling in a casino. Unit 2 Displaying and comparing quantitative data. Roulette Calculator Calculate the roulette probability of (13-24) along with the expected return on your $10. In order to place these numbers into the formula and be able to subtract fractions, we need equal. Calculate Probability Of Winning At Roulette Using Poisson. The Mathematical formula to determine the proportionate value for the selection. When it comes to the same number landing. For example, in Roulette, p = 18 38 = 9 19 ≈ . A computer simulation. 47. Understanding Roulette Odds and Probability. How large is the probability that the next throw is the number…Some gamblers use a martingale or doubling strategy as a way of improving their chances of winning. Keep. A roulette wheel consists of 38 slots numbered 0, 00, and 1 through 36, evenly spaced around a wheel. But it's not intuitive (seems low, seems like it should be >50%), and it doesn't jibe with the formula: 1 - (ways to win / total ways) ^ trials = 1 - (36/37)^37 = 64%. In general, if outcomes in a sample space [Math Processing Error] S are equally likely, then computing the probability of a single outcome or an event is very. The probability of the outcome $36 is 1/38. p = probability of winning any given bet, not counting ties. Roulette Probabilities Calculator. However, with a payout of only four times the amount wagered (i. By applying these techniques to a standard casino-grade European roulette wheel, we demonstrate an expected return of at least 18%, well above the -2. Russian roulette is a game of chance in which one or more of the six chambers of a revolver are filled with cartridges, the chamber is rotated at random, and the gun is fired. I'm learning about the gamblers ruin. 06, which equals a probability of 48. 02 = 1. A simple formula for calculating odds from probability is O = P / (1 - P). Jagger sprang into action. The probability of winning in roulette starts from 2. 61 Total probability formula. The probabilities after several rounds of playing have to be combined. 389. The most effective way of using the Martingale is to only bet on even-money outside bets – 1-18, 19-36, Red, Black, Even, and Odd. =1, to the mind: (5) Since the probability of winning Pwin in the "European Roulette" while you are playing for N sectors (rooms) is equal to:The Kelly formula in the first scenario — Kelly % = W – [(1 – W)/R] — is not an anomaly. Spins. Expected value means the "average outcome" (note, not the most likely outcome). Study with Quizlet and memorize flashcards containing terms like True or False : In a probability model, the sum of the probabilities of all outcomes must equal 1. Let us take the classic example of a dice with the numbers one to six. 8. Roulette Rules. Use the Poisson distribution to show that if you play 70 times then the approximate probability you will have won more money than you have lost is. For example, if you place a bet to win on just one number the pay-out is 35 to 1, therefore you will get £35 back, plus your original £1 stake. The probability of an event A, symbolized by P(A), is a number between 0 and 1, inclusive, that measures the likelihood of an event in the following way: If P(A) > P(B) then event A is more likely to occur than event B. Here’s a handy formula for calculating the number of outcomes when you’re flipping, shaking, or rolling. The probability of selecting a solution can be given by:. Here, you want to know the probability of getting a lemon on lines 1, 2, and 3. In the case of a revolver with six. The expected value of a game of chance is the average net gain or loss that we would expect per game if we played the game many times. I did check, however. This paper derives important formulas for the martingale strategy, such as the distribution, the expected value, the standard deviation of the profit, the risk of a loss or the expected bet of one or multiple martingale rounds. 78%. Is the roulette calculator probability formula accurate enough that we should take it seriously? It is important to keep in mind that the number of pockets on a roulette wheel does not change from spin to spin. Table 2. There is 1 2 probability of getting the first guess right. Since it measures the mean, it should come as no. In the case of a revolver with six chambers (revolvers with 5, 7, or 8 chambers are also. The Martingale system is the most popular and commonly used roulette strategy. X/. From a mathematical point of view, the games of chance are experiments generating various types of aleatory events, and it is possible to calculate by using the properties of probability on a finite space of possibilities. That means I have subtracted twice all the words $$22^{37}$ words that miss both $1$ and $2$. The layout differs for European and American roulette. Suppose you have $10, and are going to play until you go broke or have $20. However I think your book. P (x)=n!/ (n-x)!x! p^xq^ (n-x)The roulette prediction formula is an intriguing concept that aims to predict where the roulette ball will land. If you chose correctly, the payout would be 2 – 1. DIST returns the probability of a given number of sample successes, given the sample size, population successes, and population size. 1. * It is not possible to. Download Wolfram Notebook A roulette is a curve traced by a fixed point on a closed convex curve as that curve rolls without slipping along a second curve. 7%. Therefore , X ∼ B (n = 5, p = 0. At the third spin, the probability for the number 20 to win is again 1/38, or the exact probability as any of the remaining numbers on the wheel. Expression as a percentage (%) - Probability is calculated as (Event / Outcomes) * 100. Find the probability that one of them is red and the other is blue. A) The probability p for a single zero roulette game is: p = 1/37 = 0. We apply the Fundamental Formula of Gambling to one value of DC (degree of certainty): 66. A Venn diagram is a useful tool to visualize conditional probability. Many roulette wheels have slots numbered 0, 00, and 1 through 36. 002352941 = 0. Create an excel formula and write down the formula and answer the following: Considering that the roulette ball can land on the numbers 1 through 36 or land on a 0 or 00, calculate the appropriate probability of landing on a red number. Step 1: Presently, select a cell ( B5) and write the below formula to generate random numbers-. Roulette math: Formula for roulette prediction. g. BUY. by test19647195. Probability Formula: Description: P(A or B) = P(A) + P(B) – P(A and B) Probability of the union of two events. , Determine if the following statement is true or false. May 21, 2023. The concept behind it is pretty simple — you increase your bet after every loss, so when you eventually win, you get…Probability is the measure of the likelihood of an event occurring. So, the odds against success are 19 to 18 and we are aware that the house odds are 1 to 1. In one possible bet, the player bets $1 on a single number. The following example provides a step-by-step example of how to calculate the expected value of a probability distribution in Excel. Roulette Probabilities You can use this formula for all types of betting. In theoretical probability, we assume that the probability of occurrence of any event is equally likely and based on that we predict the probability of an event. 26% (if you are interested in the mathematics of roulette, the video at the end will show you how these odds are. 1. 3. If you get 3 lemons, you win 900 coins. Go for two, three or more bets at once as it increases your odds of winning the game. So the first 12 numbers in the sequence are: 1, 1, 2, 3, 5, 8, 13, 21, 34, 55, 89, 144. One of the famous problems that motivated the beginnings of modern probability theory in the 17th century, it led Blaise Pascal to the first explicit reasoning about what today is known as an expected value. The house edge largely depends on which type of roulette game you are playing. Interview Question. If required you play forever. This article describes the formula syntax and usage of the HYPGEOM. Expression as a percentage (%) - Probability is calculated as (Event / Outcomes) * 100. Interpretation of Results Here is how you should do the roulette probability formula: P(Red) x A (value for red) + P(Not red) x A (value that is not red) = 18/37 + 2 + 20/37x (-1) = 0. This gives lower fitness individual higher fitness (pseudo fitness for selection's sake). 4865. ). To use roulette math, you will need to determine the casino advantage of the game. Suppose we have a table where we will generate “ Random Numbers ” and “ Unique Rank ”. It is the probability of a specific sequence of outcomes, where each is independent (my wording might be off). (3) (b) Find the expected value of X, E. 6%) but your estimate of the ‘true’ probability of the draw is 30%. E. Relation of the Birthday Paradox to roulette. The formula for calculating the Kelly stake is: [(Probability multiplied by odds) – 1] divided by (odds-1) Using the probability mass function and summation notation allows us to more compactly write this formula as follows, where the summation is taken over the index i: E( X ) = Σ x i f ( x i ). For example, the expected number of goals for the soccer team would be calculated as: μ = 0*0. fitness for i in Indvs) wieghts = list() for i in range(len(Indvs)) : wieghts. The probability of 2 blacks showing up back to back WILL happen. After each spin, event A may occur with probability p = 18/38 = 9/19 and does not occur with probability q = 1 – p = 10/19. 7) (2 – 1) Probability = 0. The odds in roulette indicate your chances of winning a bet. 50. I ran the program for the Bondish roulette game. (This is the same as the probability of "the roulette hits $5$ reds and a black," which is exactly the point of the first computation. The strategy is based on increasing your bet after a loss. Take 1/36 to get the decimal and multiple by 100 to get the percentage: 1/36 = 0. The game of roulette involves spinning a wheel with 38 slots: 18 red, 18 black, and 2 green. 66. Roulette Links, Resources, Software, Systems. The probability that the zero wins is 1/37, 0. The game of roulette involves spinning a wheel with 38 slots: 18 red, 18 black, and 2 green. The following formula calculates the probability an. Unit 7 Probability. There are two types of Russian Roulette. Add all of these numbers together So for the first coin game, there is a 0. 10. Someone mentioned that he guessed the correct number five times in a row, and said that this was surprising because the probability of this happening was $$left(frac{1}{38} ight)^5$$ This is true if you only play the game $5$ times. The probability of selecting a solution can be given by:. European. 11 + 4*0. This gives you the total number of non-unqiue ways to choose these numbers. E. What is the probability that you will make a profit (i. Note that E (X), i. Select one of the roulette bets not yet analyzed and consider a $100 $ 100 bet. American. Study with Quizlet and memorize flashcards containing terms like If, under a given assumption, the probability of a particular observed event is extremely small, we conclude that the assumption is probably not correct. Probability with Roulette Probability with Roulette Marshall, Jennings B. Assuming you are playing roulette. Martingale is the best-known online roulette strategy to win. The Fundamental Formula of Gambling (FFG) calculates the probability and degree of certainty for various roulette bets to miss, or sleep, or skip a number of consecutive roulette spins. Formula, if understood well, can make clearer that probability events (or random events, or gambling) actually follow precise rules. To apply these concepts, we give an example using the probability o. 027. But there's also a fourth- implied probability - that is also useful when evaluating a bet or checking how likely an outcome is. Unit 1 Analyzing categorical data. The odds in roulette indicate your chances of winning a bet. probability that the single number on the roulette (Straight) will. On an American wheel, the house advantage is twice that of a European wheel, which means you could lose money twice as fast. The theory of Russian roulette has many interesting properties. In probability, independent events are entirely disjointed events: the probability of one occurring (or not) does not influence the others. Now substitute the values of n, x, p, and q into the formula. 7%. g. spin MISS HIT HIT=1 HIT>1 *MISS = miss all spins *HIT=1 = hit exactly once *HIT = hit at least once *HIT>1 = hit more than once >>INSTRUCTIONS. That does jibe with what I get in my spreadsheet. If we put this fraction in to a calculator we get 0. With 2 $ I win if at least one bet succeeds, that is 1 − (36/37)2 1 − ( 36 / 37) 2. Multiply this number by 100 to express the probability as a percentage. Author: Luke Holmes, Last Updated: 9th December 2022 Knowing the probability of success of your roulette odds is half the battle. 4865. Probability is an essential tool for casinos, as well as for banks, insurance companies, and any other businesses. Example: Expected gain at roulette. info site, problem number 116. To find the expected value, use the formula: E (x) = x1 * P (x1) +. The probability of a blackjack in a single deck game is 4*16/combin (52,2) = 64/1326. To use roulette math, you will need to determine the casino advantage of the game. The probability you will not win at least once after n n spins is. The Concept of Probability in Roulette Before you put your own funds at risk and place your first real-money bets on roulette, you need to get at least a basic understanding of what probability means. 01302, or about 1. Use HYPGEOM. (5)( 1 50) = 5 50. Question: What is the expected value of net winnings when betting £100 on the number 5 in European roulette?Roulette Probability Formula, Ggv Time Slot September 2018, Borderlands 3 Moxxi Slot Machine, Tonkaaaa Poker, Roulette Animation Powerpoint, Winstar Casino Distance From Dallas, Free Classic Retro SlotsAt the start of this guide, we listed the top 6 roulette strategies. In the event, that Black wins twice in a row, the red chances are increased even more 19/37 * 19/37 = 0. There are only two possible outcomes, called "success" and "failure," for each trial. A computer simulation study with R of the doubling strategy is. The probability of any result is 1/N, where N is the number of possible outcomes. And then randomly selecting from that distribution. More concretely, it's the sum of outcomes weighed by their probability. This formula was directly derived from the most fundamental formula of probability: Number of favorable cases, n, over Total possible cases, N: n / N. The sample space of the experiment of flipping a single coin contains just these two outcomes: S = { H, T } Likewise, we can easily list the numerical outcomes of rolling a single six-sided die: S. the number of students who received an "A" on their statistics exam. the probability of getting one roulette number is 1 in 38 or p = 1/38. One-half of the numbers from 1-36 are red, and the other half are black; 0 and 00 are green. Here is the principal mathematical formula for calculating the chance of any roulette outcome or event. You must remember that the expected value’s. Remember, to calculate probability when the question includes the word “and”, you multiply. But this doesn't change the fact that you have discovered a nice winning strategy; it's just that your strategy can't win (on average) in any finite amount of bets. e. Whew, there you go! I know that was a lot, but the game of roulette is a complex one, and really deserves some serious effort. Free Roulette Calculator - Calculates the probability for different bets on a roulette wheel including expected return on a monetary bet. At the basic mathematical level it is a formula which relates P(AjB) and PBjA). Conditional Probability The probability that one event occurs, given that another event has already occurred. The shooter bets on whether the chamber which rotates into place will be loaded. the probability of winning 2 times 8. the probability of winning 1 times P(X=1) c. Depositing and playing at our Bitcoin casino is reall. If spins are random, the odds of winning are fixed. This investigation will be using the French version of roulette without the 00 number. 41% for European, and 5. What’s more, you can take those two amounts, subtract the average loss from the average win to get the expected value of $0. 5 n. This calculator has 1 input. Focus on the Game. 1. Suppose that there are two balls spinning at once, and that it is physically possible for two balls to fit into the same slot. This is critical to understand because any roulette winning formula must account for real physical variables. e. They both place bets on red on 3 spins of the roulette wheel before Xavier has to leave. A roulette wheel is divided into 25 sectors of equal area numbered from 1 to 25. So, the probability of winning when betting on the number 5 in European roulette is 1/37. , the 1 to 1 odds are exact. Roulette (named after the French word meaning "little wheel") is a casino game which was likely developed from the Italian game Biribi. A square has four outcomes, so the probability is 4/37. The game is very similar to a real-world casino table. ‪Plinko Probability‬ - PhET Interactive SimulationsBlackjack payout side bet, roulette probability formula. The payoff on a tie is either 9 - 1 or 8 - 1, depending on the casino, however since the true odds of a tie occurring are 10 - 1, the Tie. Answer: To solve this problem, let's first look at the probability formula. From a mathematical point of view, the games of chance are experiments generating various types of aleatory events, and it is possible to calculate by using the properties of probability on a finite space of possibilities. Solution : Total number of outcomes = 20 C 2 = 190 Number of favorable outcomes = 10 C 1 x 10 C 1 = 100 Therefore, required probability = 100 / 190 = 10 / 19. Consider the distribution of (success) runs of length r r, where we say a run. The Martingale betting system is based on a situation, where a player faces odds of 1 to 1 (or a bit worse) at every round in a game of chance. 1081 Multiply by 100. In fact, as we will see, we win before we lose with probability at most 1 37648. The 0. 67%. Roulette is a casino game played at a table with a numbered, spinning wheel and betting layout. Use the formula 1 - 1/37 to calculate the probability that a specific number won’t play. If we roll n dice then there are 6 n outcomes. Substitute the values in the formula and the equation becomes. A ball is spun onto the wheel and will eventually land in a slot, where each slot has an equal chance of capturing the ball. results, nine numbers of wheel six were showing at a rate exceeding what probability would indicate. Red and black on roulette table (without green "0"). The 2 is the number of choices we want, call it k. When all bets lose, the total loss isCalculating expected values of roulette bets. 5 probability of winning $1, and a 0. It is easy lose yourself in the formulas and theory behind probability, but it has essential uses in both working and daily life. in Marketing. e. We've previously discussed some basic concepts in descriptive. 5 ×1+ (1÷3)×1+1+1=8. 2% of the successes will fall within 1 Standard. Content in the footer will take you to the directory index. Here the house has a slight edge. The probability that the gambler will lose all n bets is q n. 4…Calculation of Expected Value We use the above information with the formula for expected value. A simple example: Say you bet $100 on red. The formula for calculating the Kelly stake is: [(Probability multiplied by odds) – 1] divided by (odds-1)The formula for expected value is relatively easy to compute, involving several multiplications and additions. We interpret the problem as asking for the probability that there are exactly $24$ distinct numbers in the $37$ spins. Step 4 - Calculate mean of Bernoulli distribution. I reasoned that the probability for survival is the probability that the gun has not yet been fired, and does not fire this time either, or that the gun already fired in the past and hence has no more bullets. A simple formula for calculating odds from probability is O = P / (1 - P). The main game is played with a wheel and colored pockets with alternating black and red. e. g = bankroll goal in units. Calculate Probability (%) to. What 4 concepts are covered in the Roulette Calculator? expected return amount of profit or loss an investor anticipates on an. How large is the probability that the next throw is the number… Some gamblers use a martingale or doubling strategy as a way of improving their chances of winning. Hi, I have a simple roulette simulator which generates 10,000 spins in excel using random generate between 0 and 36. With the 5% house edge, players would eventually walk away with 95% of their money. 2 Answers. This formula can be applied to determine any roulette probability by using the form of “Bet B hitting x times in n spins. Using the Martingale System. -Bets can be made on based on a number, or a group of numbers, and are rewarded differently. It turns up in many other sources, including NASDAQ, Morningstar, Wiley’s For Dummies series, Old School Value, etc. Remember, to calculate probability when the question includes the word “and”, you multiply. 66. + xn * P (xn). (The variance is the square of the standard deviation. Assume I have an infinite bankroll and bet on black with an American roulette wheel , while using the "Martingale" strategy (doubling your betsize every time you lose). However, otherwise the bet is lost and the outcome is −1$ − 1 $ (a loss of a dollar). For example, if you’re playing roulette, bet $10 on red, and lose, you’d bet $20 on the next spin to recoup the. A good middle way, instead, is the roulette wheel selection, which creates a discrete probability distribution from which we identify the chromosomes for crossover. According to the law, the average of the results obtained from a large number of independent identical trials should be close to the expected value and tends to become closer to the expected. Once your opponent has survived the first round, he or she turns into the player to go first, with probability a of winning the game, so q=a. (This is the same as the probability of "the roulette hits $5$ reds and a black," which is exactly the point of the first computation. 2460. Example (PageIndex{5}): House Edge in Roulette. 18 P(Red) = = 9/19 38. Below is a practical example of how you can calculate the expected value of any given game using American roulette probability values. After Jagger returned to the village of Shelf near Halifax, Yorkshire, he continued toExplain using information you learned in this module's material, such as expected value. Step 5 - Calculate variance of Bernoulli distribution. 5÷3 and 2nd is 0. The formula is simply =D6*D5*D4, which multiplies your bankroll times the Kelly recommended bet proportion, multiplied by the adjustment factor you put into D6. Logically, the answer to that challenge is p = ½ = 0. The. We compute the expected value by multiplying the value of each outcome by its probability of occurring and then add up all of the products. 18 + 1*0. In both of the games I will start with 1000. The variance is the probability-weighted sum of squared distances from the expected value. On the other hand, the first full moon of spring and the date of Easter are dependent. In the gambler’s ruin problem, assume that the gambler initial stake is 1 dollar, and assume that her probability of success on any one game is p. The below table gives you the complete list of. 64%. With this formula, the payout will be added to the initial bet. The probability of both events occurring is therefore. 0000205 ext. American Odds. The house advantage on the Banker's bet is 1. Logically, the answer to that challenge is p = ½ = 0. Last Updated : Apr 03, 2023. To apply the formula, we need to follow these steps: Select cell E3 and click on it. You have a sequence of N = 25000 N = 25000 independent Bernoulli trials, where I'll consider a "success" to be a spin not from 1 to 12. Nothing, but nothing, has a probability. (Two have no color). Example : the probability for any of the 37 roulette numbers ( 37 spins = one rotation ), is 0,0604286. 11% in European, and 7. 70%). Because of this, the odds of coming out in front in the long-run are very very small, and close enough to impossible. g. Take Wolfram|Alpha for a spin to determine the odds of winning with various bets and their possible payouts. This represents the _______. Calculate Probability (%) to. 77 The expected (theoretical) number of successes is: 65 Based on the Normal Probability Rule: · 68. …Thanks for the compliment. guru which will be useful to complete your work very easily. How to Calculate the Probability of Winning at Roulette. Let n be the finite number of bets the gambler can afford to lose. One natural question to ask about a probability distribution is, "What is its center?" The expected value is one such measurement of the center of a probability distribution. The amount you win will all depend on where you place your bets. The number of possible outcomes equals the number of outcomes per coin (2) raised to the number of coins (6): Mathematically, you have 2 6 = 64. 1. The probabilities (odds) for keno games are calculated by the same function as lotto, using three parameters. In the game, a player may choose to place a bet on a single number, various groupings of numbers, the color red or black,. First ,break the odds into 2 separate events: the odds of drawing a white marble (11) and the odds of drawing a marble of a different color (9). Assume European roulette win single zero. How can you go about calculating the expected profit at some number of rounds without generating every possible path? 1 dollar bet, 10 rounds possible paths + EVExperimental or empirical probability is the probability of an event based on the results of an actual experiment conducted several times. Unit 8 Counting, permutations, and combinations. Hence, determining the “ Ball Number ” will lead us to calculate the probability of winning the lottery. The probabilities are calculated to a high degree of accuracy in " The Asymptotics of Group Russian Roulette ," by Tim Van De Brug, Wouter Kager, and Ronald Meester. There is a formula for questions like this, which I explain on my site see problem 116. Therefore, if E (X) = µ, we have E (X − µ) = E (X) − E (µ) = µ − µ = 0. Last Updated : Apr 03, 2023. The probabilities to win or to lose are: P(X =win) P(X =lose) = 18 37 = 19 37 P ( X = w i n) = 18 37 P ( X = l o s e) = 19 37. Bspin Casino No Deposit Bonus Promo Codes 2021. It is a version of sampling with replacement. P (A or B) = P (A) + P (B) - P (A and B) Probability Trees. In simple words, probability defines the likelihood of a certain event/outcome happening. Definition [Math Processing Error] 6. The dealer will place a token on top of the dealer's stack of that color of chips to indicate the value. Imagine two people in different cities throwing a coin: the outcome of each toss is entirely independent of the other. The. . Statistics and probability 16 units · 157 skills. What 2 formulas are used for the Roulette Calculator? Probability of color = Total Spaces of Color/Total Spaces. Type (i): We always randomize (twirl the chamber) between shots, and Type (ii): We do not randomize. If the wheel lands on red you receive $200 (your initial bet back plus the winnings). What is the probability that the wheel lands on a number divisible by 4 when you roll the roulette?. 3%. Each roulette strategy works for both land-based and online casino games. 2. Unit 3 Summarizing quantitative data. Instructions 100 XP Instructions 100 XP Run a single Monte Carlo simulation of 10,000 bets using the following steps. Solution: (a) The repeated tossing of the coin is an example of a Bernoulli trial. Therefore, if E (X) = µ, we have E (X − µ) = E (X) − E (µ) = µ − µ = 0. 67 percent. 2. The exact house edge will depend on what variant of the number you are playing.