CUET Mathematics 2026 19th May Shift 1 PYQs

If X is a random variable and a, b are real numbers, then which of the following statements are correct?

(A) $E[aX+b] = a E(X) + b$

(B) $Var (aX + b) = a^2 Var (X) + b$

(C) $Var (aX + b) = a Var (X)$

(D) $Var (X) = E(X^2) - [E(X)]^2$

Choose the correct answer from the options given below:

The binomial distribution for which the mean is 5 and variance 4, is

A random variable X has the following probability distribution:

The value of K is