If X is a random variable with distribution given below
The value of k and its variance are

If X is a random variable with probability distribution as given below: Then, the variance of X is

The distribution of a random variable X is goven below The value of k is

If X is random variable with distribution given below x:1 2 3 4 P(X=x):k k 2k 3k The value of k and its mean are

A random variable X has the probability distribution given below Its variance is

The probability distribution of a random variable X is given below. Find the value of k, mean, also find variance of X.

The probability distribution of a random variable Xis given below: Find the value of k and the mean and variance of X.

If the probability distribution of a random variable X is as given below Then, mean and variance are