What is p for n=4, n=16, and n=25?

Consider a binomial experiment with n=20 and p=0.70.

• Compute f(12).
• Compute f(16).
• Compute P(x >= 16).
• Compute P(x <= 15).
• Compute E(X).
• Compute Var(X).

13. If the matrix expression ABT - (CA-1)T is defined, where A is n xn invertible, B is p xs, and C is q xt, then only one of the following is a necessary restriction on n, P, 8, 9, and t. Indicate which one. A) B) n=p=s=q=t. n=s=q and p=t. n=s= t and p=q. P=s=n and q=t. D)