# Question: The following table provides a probability distribution for the random

The following table provides a probability distribution for the random variable x.

x f(x)

3 .......... .25

6 .......... .50

9 .......... .25

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

b. Compute σ2, the variance of x.

c. Compute σ, the standard deviation of x.

x f(x)

3 .......... .25

6 .......... .50

9 .......... .25

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

b. Compute σ2, the variance of x.

c. Compute σ, the standard deviation of x.

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