#### Question

If X ~ B (n, p) and E(X) = 12, Var(X) = 4, then the value of n is _______

(A) 3

(B) 48

(C) 18

(D) 36

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#### Solution

E(X) = np and Var (X) = npq

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Solution for question: If X ~ B (N, P) and E(X) = 12, Var(X) = 4, Then the Value of N Is__ concept: null - Calculation of Probabilities. For the courses HSC Science (General) , HSC Arts, HSC Science (Computer Science), HSC Science (Electronics)