The value of expection of the number of heads in 15 tosses of a coin is `(15)/(k)`. The value of K will be

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

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

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

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

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

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 coins. (iii) number of heads in four 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 coins. (iii) number of heads in four tosses of a coin.