Letbe a random variable with the following probability distribution. Valueof x of X / P(X=x) -30 /
Fantastic news! We've Found the answer you've been seeking!
Question:
Letbe a random variable with the following probability distribution.
Valueof x of X / P(X=x)
-30 / 0.10
-20 / 0.35
-10 / 0.20
0 / 0.30
10 / 0.05
Complete the following. (If necessary, consult a list of formulas.)
(a) Find the expectationof E (X) of X.
E(X) = _______
(b) Find the variance Var (X) of X.
Var(X)=________
Expert Answer:
Posted Date:
