The probability that a particular day in the month of July is a rainy day is `3/4` . Two person whose credibility are `4/5` and `2/3` , respectively, claim that 15th July was a rainy day. Find the probability that it was really a rainy day.

The probability that a particular day in the month of July is a rainy day is 3/4 . Two person whose credibility and 4/5 and 2/3 , respectively, claim that 15th July was a rainy day. Find the probability that it was really a rainy day.

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

There is 30% chance that it rains on any particular day. What is the probability what where is at least one rainy day within a period of 7 days ? Given that there is at least one rainy day, What is the probability that there are at least two rainy days ?

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

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

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

Three persons work independently on a problem. If the respective probabilities that they will solve it are 1/3, 1/4 and 1/5, then find the probability that not can solve it.

Offices in Delhi are open for five days in a week (Monday to Friday). Two employees of an office remain absent for one day in the same particular week. Find the probability that they remain absent on : (iii) different days.

Three persons work independently on a problem. If the respective probabilities that they will solve it are 1/3, 1/4 and 1/5, then find the probability that none can solve it.

Offices in Delhi are open for five days in a week (Monday to Friday). Two employees of an office remain absent for one day in the same particular week. Find the probability that they remain absent on : (ii) consecutive day