Discrete random variable || Mean & variable OF random variable || Binomial probability distribution

Mean of a discrete random variable

A random variable X has the follwing probability distribution: Find k.

A random variable X has the following probability distribution find K.

The mean and variance of a random variable X having a binomial probability distribution are 6 and 3 respectively, then the probabiltiy P(X ge 2) is

A random variable has the following probability distribution The value of p is

A random variable has the following probability distribution The value of p is

A random variable X has the following probability distribution: Then E(X) = …….

A random variable X has the following probability distribution: then Var(X)=____

Variance of a discrete random variable