pose that two teams play a series of games that ends when one of them has won 3 games. Suppose that ne played is, independently, won by team A with probability. Let X be the number of games that are play Find P(X= 4)

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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 4)
(b) Find the expected number of games played.
Transcribed Image Text: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 4) (b) Find the expected number of games played.
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