Find the probability distribution of the number of heads when three coins are tossed.

Find the probability distribution of the number of sixes in three tosses of a die.

Find the probability distribution of X ,the number of heads in two tosses of a coin ( or a simultaneous toss of two coins).

Find the probability of obtaining two tails and one head when three coins are tossed.

Find the probability distribution for number of heads obtained in three tosses of a coin.

Find the probability distribution of a) number of heads in two tosses of a coin, b) number of tails in three tosses of a coin.

Find the probability distribution of (i) number of heads in two tosses of a coin.(ii) number of tails in the simultaneous tosses of three corns. (iii) number of heads in four tosses of a com.

Find the probability distribution for number of heads obtained in two tosses of a coin.

Find the mean, variance and standard deviation of the number heads when three coins are tossed.

Find the mean and variance of the number of heads when two coins are tossed simultaneously.