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My brain is not working today. 9 . Let random variable x represent the number of heads when a fair coin is tossed two times.

My brain is not working today.

9. Let random variable x represent the number of heads when a fair coin is tossed two times.

(a) Construct a table describing the probability distribution.

(b) Determine the mean and standard deviation of x. (Round the answer to two decimal places)

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