In a throw of dice what is the probability of getting number greater than 5

An urn contains 6 red, 4 blue, 2 green and 3 yellow marbles. If four marbles are picked up at random, what is the probab…

One card is drawn from a pack of 52 cards. What is the probability that the card drawn is either a red card or a king ?

A box contains 10 black and 10 white balls. What is the probability of drawing 2 balls of the same colour ?

What is the possibility of having 53 Thursdays in a non-leap year?

A box has 5 black and 3 green shirts. One shirt is picked randomly and put in another box. The second box has 3 black an…

A box contains 100 balls, numbered from 1 to 100. If three balls are selected at random and with replacement from the bo…

The mean of binomial distribution is