True or false
If a coin is tossed 5 times and X denote the number of heads shows then P(X=2)=P(X=3).

An unbiased coin is tossed 4 times. Find the mean and variance of the number of heads obtained.

An unbiased coin is tossed 4 times. Find the mean and variance of the number of heads obtained.

A coin is tossed 4 times. Let X denote the number of heads. Find the probability distribution of X, its mean and variance.

A pair of dice is tossed once and X denotes the sum of numbers that appears on the two dice, then P(Xle4)=______ .

A girl throws a die. If she gets 5 or 6, tosses a coin three times and notes the number of heads. If she gets 1,2,3 or 4, she tosses a coin two times and notes the number of heads. If she obtained exactly two heads, what is the probability that she throws 1,2,3 or 4 with the die.

A coin is tossed 5 times . What is the probability of getting 5 heads ?

A coin is tossed 5 times. What is the probability of getting : no head.

An unbiased coin is thrown thrice. If the random variable X denotes the number of heads obtained, describe the probability distribution of X .

A coin is tossed twice. Let X denotes of the number of times 'head' tunrs up. Write down the probability distribution of X.

A coin is tossed 5 times. What is the probability of getting : 3 heads?