Referring to Problem 5.42, compute the mean and standard deviation for the hypergeometric distributions described in (a)

Question:

Referring to Problem 5.42, compute the mean and standard deviation for the hypergeometric distributions described in (a) through (d).
a. If n = 4, N = 10 and A = 5, find P(X = 3).
b. If n = 4, N = 6 and A = 3, find P(X = 1).
c. If n = 5, N = 12 and A = 3, find P(X = 0).
d. If n = 3, N = 10 and A = 3, find P(X = 3).