Question: Let be a random variable with the following probability distribution: Value of -30 X(of x) 0.05 P(X=x) -20 0.05 -10 0.15 0 0.75 Find the

Let be a random variable with the following probability distribution:

Value of

-30 X(of x) 0.05 P(X=x)

-20 0.05

-10 0.15

0 0.75

Find the expectation and variance of E (x) and Variance Var(x) of x.

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