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?

Question

Gia Burton

13 May, 04:52

+2

Answers (1)

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Katherine Estrada · 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?