A box contains nine bulbs out of which 4 are defective. If four bulbs are chosen at random, find the probability that al…

In a box, there are 8 red, 7 blue and 6 green balls. One ball is picked up randomly. What is the probability that it is …

Which of the following is not a condition of the binomial distribution?

Two unbiased coin are tossed .What is the probability of getting at most one head?

A basket contains 6 blue, 2 red, 4 green and 3 yellow balls. If 5 balls are picked up at random, what is the probability…

A speaks truth in 75% of cases and B in 80% of cases. In what percent of cases are they likely to contradict each other …

Four cards are drawn at random from a pack of 52 playing cards. Find the probability of getting all the four cards of th…

Binomial distribution has parameters