November 30, 2015

Homework Help: Probability and statistics

Posted by Arun on Friday, March 2, 2012 at 3:25am.

8. A random variable X takes exactly the 5 values 1, 2,3,4,5, all with same probability. The mean of X is

Choose one answer
a. 2.5
b. 15
c. 7.5
d. 3

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