In special rule of addition of probability, the events are always

The the special rule of multiplication of probability, the events must be

Two dice are thrown simultaneously. What is the probability of getting two numbers whose product is even ?

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

A box has 6 black, 4 red, 2 white and 3 blue shirts. What is probability of picking at least 1 red shirt in 4 shirts tha…

The probability that a card drawn from a pack of 52 cards will be a diamond or a king is -

Three unbiased coins are tossed. What is the probability of getting at least 2 tails?

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…