# Coin Toss Probability

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52) (from pg. 52) A coin, having probabiliyt p of landing heads, is flipped until head apears for the rth time. Let N denote the number of flips required.

a) Calculate E[X] for the maximum random variable fo Exercise 37.

b) Calculate E[X] for X as in Exercise 33.

c) Calculate E[X] for X as in Exercise 34.

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##### Solution Summary

A coin, having probability p of landing heads, is flipped until head apears for the rth time. Let N denote the number of flips required.

a) Calculate E[X] for the maximum random variable fo Exercise 37.

b) Calculate E[X] for X as in Exercise 33.

c) Calculate E[X] for X as in Exercise 34.

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