_fZtSyVRXFI9F_OAHM6Rx2f6TnS_nmD Week 2 Homework Question 12 of 20 (1 point) | Question Attempt: 1 of Unlimited Let X be a random variable with the following probability distribution. Value x of X P(X=x) -30 0. 15 0.25 10 0.25 0. 10 0.15 0.10 Complete the following. (If necessary, consult a list of formulas.) (a) Find the expectation E (X) of X. X E (X) = (b) Find the variance Var(X) of X. var (X) = Check