Draw a sample of size 2 with replacement from the population

Draw a sample of size 2, with replacement, from the population (-10, 0, 20, 30). (The first number is a MINUS 10.) a. Calculate mu and sigma^2 b. In table form, find the sampling distribution of X c. Demonstrate that E(X)= mu. d. Demonstrate that V(X) equals whatever it is supposed to equal. e. In table form find the sampling distribution of S^2. f. Demonstrate that E(S^2)=sigma^2