A random experiment consists of three independents of a fair coin. Write down the sample space. Let X be the number of heads obtained. Obtain the probability distribution of X and calculate its expectation and variance.

A random experiment consists of three independent tosses of a fair coin write down the sample space let x be the number of heads obtained obtain the probability distribution of x and calcualte its expectation and variance

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

A fair coin is tossed 3 times. Let X be the number of heads obtained. Find E(X) and V(X).

A fair coin is tossed 3 times. Let X be the number of heads obtained. Find E(X) and V(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 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 4 times.Let X denotes the number of heads obtained.Write down the probability distribution of X.Also find the formula for pmf 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

An unbiased coin is thrown thrice. If the random variable X denotes the number of heads obtained, describe the probability distribution of X .