Marti decides to keep placing a $1 bet on number 15 in consecutive spins of a roulette wheel until she wins. On any spin, there’s a 1-in-38 chance that the ball will land in the 15 slot. a) How many spins do you expect it to take until Marti wins? Justify your answer. b) What is the probability that it takes 5 spins before Marti wins? c) What is the probability that it will take Marti more than 50 spins to win?
Contingency Table
A contingency table can be defined as the visual representation of the relationship between two or more categorical variables that can be evaluated and registered. It is a categorical version of the scatterplot, which is used to investigate the linear relationship between two variables. A contingency table is indeed a type of frequency distribution table that displays two variables at the same time.
Binomial Distribution
Binomial is an algebraic expression of the sum or the difference of two terms. Before knowing about binomial distribution, we must know about the binomial theorem.
2) Marti decides to keep placing a $1 bet on number 15 in consecutive spins of a roulette wheel until she
wins. On any spin, there’s a 1-in-38 chance that the ball will land in the 15 slot.
a) How many spins do you expect it to take until Marti wins? Justify your answer.
b) What is the probability that it takes 5 spins before Marti wins?
c) What is the probability that it will take Marti more than 50 spins to win?
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