Posted by **Shawna** on Friday, March 21, 2014 at 10:01am.

A fair coin is tossed 3 times in a row. If X is the number of heads counted, what is the mean of the probability distribution of X?

A) 1.0

B) 1.5

C) 2.0

D) 2.5

E) 3.0

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