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OpenStudy (anonymous):

The following table shows the probability of rolling the numbers 1 through 8 on a fair 8-sided die. What is the standard deviation of the random variable X, "the number that comes up on the die"?

OpenStudy (anonymous):

X 1 2 3 4 5 6 7 8 P(X) 1/8 1/8 1/8 1/8 1/8 1/8 1/8 1/8

OpenStudy (anonymous):

A. 14.028 B. 1.708 C. 2.291 D. 3.745 E. 3.5

OpenStudy (anonymous):

C. 2.291 (:

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