Find the mean number of heads in three tosses of a fair coin.

Determine variance and standard deviation of the number of heads in three tosses of a coin.

(a) (i) Find the probability distribution of the number of heads when three coins are tossed simultaneously. (ii) Find the probability distribution of the number of tails in the simultaneous tosses of three coins. (iii) Find the probability distribution of the number of heads in the simultaneous toss of four coins. (b) (i) Find the probability distribution of the number of heads in three tosses of a coin. (ii) Find the probability distribution of the number of sixes in two tosses of a die. ( c ) Find the probability distribution of the number of heads (tails) in four tosses of a coin.

Find the mean and variance of the number of heads in the two tosses of a coin.

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

Find the expectation of the number of heads in 15 tosses of as 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.

The mean of the number of heads in two tosses of a coin is ___________.

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 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.