`Var( 4x + 8)` is

The product of the polynomials (x + 2), (x - 2), (x^(3) - 2x^(2) + 4x - 8) and (x^(3) + 2x^(2) + 4x + 8) is

A r.v. X assumes values 1, 2, 3, …, n with equal probabilities. If Var (X) = 4 E (X), then n =

A r.v. X assumes values 1, 2, 3, …, n with equal probabilities. If Var (X) = E (X), then n =

Let X ~ B (n,P). I f E(X) = 5 and Var (x) = 2.5 find n and p

If X be a random variable taking values x_(1),x_(2),x_(3),….,x_(n) with probabilities P_(1),P_(2),P_(3) ,….. P_(n) , respectively. Then, Var (x) is equal to …….. .

In integers, 4x – 1 = 8 has_________ solution .

solve the Inequality 4x - 7 < 8

For a random variable X, if Var (X) = 4 and E(X^(2))=13 , the value of E(X) is

Given X~B(n,p) if E(X) = 6, Var (X) = 4.2 , find the value of n and p.