A fair coin is continually flipped until the first occurrence of the pattern HHH. Let X denote the number of flips required. By conditioning

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter0: Preparing For Algebra
Section0.11: Simple Probability And Odds
Problem 1E
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A fair coin is continually flipped until the first occurrence of the pattern HHH. Let
X
denote the number of flips required. By conditioning, find
E X
and
Var X

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