Find the probability that the birth days of six different persons will fall in exactly two calendar months.

Find the number of ways in which the birthday of six different persons will fall in exactly two calendar months.

Find the number of ways in which the birthday of six different persons will fall in exactly two calendar months.

What is the probability that the 13th days of a randomly chosen months is Friday?

Find the probability that the leap year selected at random will contain of exactly 52 Wednesdays.

Find the probability distribution of the number of sixes in three tosses of a die.

Find the probability of getting 5 exactly twice in 7 throws of a die.

4 people are selected randomly out of six married couple. Find the probability that exactly one married couple is formed exactly two married couple are formed the do not form a married couple.

Find the probability of throwing at most 2 sixes in 6 throws of a single die.

Find the probability of throwing at most 2 sixes in 6 throws of a single die.

Two different dice are tossed together, Find the probability that the product of the two numbers on the top of the dice is 6.