A bag contains 7 green and 5 black balls. Three balls are drawn one after the other. The probability of all three balls …

Probability distribution of a random variable is also known as

In hypergeometric distribution, the trials are

What is the probability of getting a sum 9 from two throws of a dice?

The probability of a lottery ticket being a prized ticket is 0.2. When 4 tickets are purchased, the probability of winni…

A box contains 3 white, 4 red and 7 blue erasers. If five erasers are taken at random then the probability that all the …

A number X is chosen at random from the numbers -3, -2, -1, 0, 1, 2, 3. What is the probability that $$|X| < 2$$

A speaks truth in 75% cases and B in 80% of cases. In what percentage of cases they contradict each other in narrating t…