Problem #2: Suppose that two teams play a series of games that ends when one of them has won 3 games. Suppose that each game played is, independently, won by team A with probability. Let X be the number of games that are played. (a) Find P(X = 5) (b) Find the expected number of games played.

College Algebra
7th Edition
ISBN:9781305115545
Author:James Stewart, Lothar Redlin, Saleem Watson
Publisher:James Stewart, Lothar Redlin, Saleem Watson
Chapter9: Counting And Probability
Section9.4: Expected Value
Problem 1E: If a game gives payoffs of $10 and $100 with probabilities 0.9 and 0.1, respectively, then the...
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Problem #2: Suppose that two teams play a series of games that ends when one of them has won 3 games. Suppose that each
game played is, independently, won by team A with probability. Let X be the number of games that are played.
(a) Find P(X - 5)
(b) Find the expected number of games played.
Transcribed Image Text:Problem #2: Suppose that two teams play a series of games that ends when one of them has won 3 games. Suppose that each game played is, independently, won by team A with probability. Let X be the number of games that are played. (a) Find P(X - 5) (b) Find the expected number of games played.
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