5 men in a company of 20 are graduates. If 3 men are picked out of the 20 at random, what is the probability that they are all graduates? What is the probability of at least one graduate?

Five men in a company of 20 are graduates. If 3 men are picked out of 20 at random, what is the probabilty that they are all graduates? What is the probability of at least one graduate?

Six men in a company of 20 employees are graduates.If 3 men are selected from 20 at random,what is the probability that they are all graduates? What is the probability that at least one is a graduate?

Four men in a company of 10 employees are engineers.If 2 men are selected at random,then find the probability that exactly one of them will be engineer.

A basket contains 4 red , 5 blue and 3 green marbles . If three marbles are picked at random , what is the probability that at least one is blue ?

Anurn contains 6 red,4 blue ,2 green and 3yellow marbles If four marbles are picked at random , what is the probability that at least one is blue ?

A basket contains 3 blue ,4 green & 5 red balls .If three balls are picked at random ,what is the probability that at least one is red ?