Determine the number of ways of obtaining 4 heads and 2 tails in 6 tosses of a coin.

The probability of getting at least one tail in 4 tosses of a coin is:

A coin is tossed 5 times. Determine the number of ways in which 0 head (i.e. 0 head and 5 tails) can appear. Also find the number of ways in which 1 head (i.e. 1 head and 4 tails) can appear, and so on. Then complete the given table :

Find the probability distribution of number of tails in four tosses of a coin.

Find the probability distribution of number of heads in four tosses of a coin.

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

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