Five coins were simultaneously tossed 1000 times and at each toss the number of heads were observed. The number of tosses during which 0,1,2,3,4 and 5 heads were obtained are shown in the table below. Find the mean number of heads per toss.

Five coins were simultaneously tossed 1000 times, and at each toss the number of heads was observed. The number of tosses during which 0, 1, 2, 3, 4 and 5 heads were obtained are shown in the table below. Find the mean number of heads per toss mmmmmmmmmmmmmmmmmmmmmmmmmmmmm No. of heads per toss (x) : 0 1 2 3 4 5 No. of tosses (f) : 38 144 342 287 164 25

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

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

A coin is tossed 5 times. If X is the number of heads observed, find the probability distribution of X .

Two coins are tossed five times. The probability that an odd number of heads are obtained, is

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

If 4 coins are tossed then the mean and variance of X where X is the number of head

Find the expectation of the number of heads in 15 tosses of a coin.

A and B toss 3 coins . The probability that they both obtain the same number of heads is

If 10 coins are tossed then mean and variance of x and x denotes the number of heads is