fair coin is tossed three times. The random variable X is defined to be , where h is the number of flips that come up heads. For example, X(HHT) = 2 . What is E[X]?

A First Course in Probability (10th Edition)
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ISBN:9780134753119
Author:Sheldon Ross
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Chapter1: Combinatorial Analysis
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A fair coin is tossed three times. The random variable X is defined to be , where h is the number of flips that come up heads. For example, X(HHT) = 2 . What is E[X]?

 

A fair coin is tossed three times. The random variable X is defined to be zh , where h is the number of flips
that come up heads. For example, X(HHT) = 2ª . What is E[X]?
3/2
27/8
2
1
Transcribed Image Text:A fair coin is tossed three times. The random variable X is defined to be zh , where h is the number of flips that come up heads. For example, X(HHT) = 2ª . What is E[X]? 3/2 27/8 2 1
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