A random variable, X, is defined for the number of times a coin lands on heads when flipped 4 times. The probability distribution is below.

X 0 1 2 3 4

P (X) 1/16 4/16 6/16 4/16 1/16

What is the expected value for the number of heads you expect after 4 coin flips?

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22 November, 21:24

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Brenda Schneider · Answer 1

Answer: 1/16

you cannot really estimate a number when it is a 50/50 chance therefore we can only answer with 1

A random variable, X, is defined for the number of times a coin lands on heads when flipped 4 times. The probability distribution is below.X 0 1 2 3 4P (X) 1/16 4/16 6/16 4/16 1/16What is the expected value for the number of heads you expect after 4 coin flips?