Q29Single correct3 Marks16 Oct 2022

Which of the following statements are correct?

A

The probability density function (PDF) of a continuous random variable $X$ must be continuous.

B

The cumulative distribution function (CDF) of a continuous random variable $X$ must be continuous.

C

The sum of two independent binomial random variables must be a binomial random variable.

D

For a random variable $X$, mean and variance cannot be equal.