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 …

Binomial distribution has parameters

For a random variable X, E(X) is

The mean, median and mode for binomial distribution will be equal when

Suresh keeps all his socks in a single drawer. He has 24 pairs of white socks and 18 pairs of grey socks. Suresh picks 3…

One card is drawn at random from a pack of 52 cards. What is the probability that the card drawn is a face card (Jack, Q…

The probability function is always

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