A fair die is tossed. Let X denote twice the number appearing. Find the probability distribution, mean and variance of X.

A fair coin is tossed four times. Let X denote the number of heads occurring. Find the probability distribution, mean and variance of X.

A fair coin is tossed four xx.Let X denote the number of heads occurring.Find the probability distribution,mean and variance of X.

A coin is tossed 4 times. Let X denote the number of heads. Find the probability distribution of X, its mean and variance.

Pair of fair dice is thrown. Let X be the random variable which denotes the minimum of the two numbers which appear. Find the probability distribution, mean and variance of X.

A coin is tossed 4 times. Let X denote the number of heads. Find the probability distribution of X. Also, find the mean and variance of X.

Pair of fair dice is thrown.Let X be the random variable which denotes the minimum of the tow numbers which appear.Find the probability distribution,mean and variance of X.

A fair die is tossed. Let X denote 1 or 3 according as an odd or an even number appears. Find the probability distribution, means variance of X .

A coin is tossed 4 times let x denote the number of heads find the probability distribution of X also find the mean and variance of X

A fair coin is tossed for xx.Let X denote 1 or 3 according as an odd or an even number appears.Find the probability distribution, means variance of X .

Two numbers are selected at random from first six positive integers. Let X denote the larger of the two numbers obtained. Find the probability distribution of X. find the mean and variance of this distribution.