(Answered) Shown is a probability distribution for the random variable

Finance

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 If2, the variance of x.

c. Compute If, the standard deviation of x.

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