Shown is a probability distribution for the random variable x. x f(x) 3 .......0.25 6 ........0.50 9

Question:

Shown is a probability distribution for the random variable x.

x f(x)

3 .......0.25

6 ........0.50

9 .......0.25

Total 1.00

a. Compute E(x), the expected value of x.

b. Compute σ2, the variance of x.

c. Compute σ, the standard deviation of x.

Distribution
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