Suppose a classroom has 10 males and 12 females and a committee of 3 is to be formed. Find the probability that the committee contains all females. 3 22 C3 12 C3 22 C3 1 22 C3 3! 12!

There are 5 red eggs and 9 green eggs in a tank. Grogu reaches in and randomly eats 3 eggs. What is the probability that he eats 2 red eggs?

Suppose you have 5 red cards, 8 green cards, and 12 blue cards. The cards are well shuffled and you randomly draw one card. Find the probability of drawing a green card.

A bag of marbles contains 7 yellow marbles, 4 white marbles, 2 blue marbles, and 9 red marbles. A marble is drawn and replaced. What is the probability of having a red marble, then a white marble, and then a blue marble? (Enter your probability as a fraction.)

Pablo randomly picks five marbles from a bag of eleven marbles (six red ones, three green ones, and two yellow ones).   How many outcomes are there in the event that all of the marbles he picks are red?

A spinner has 3 possible outcomes: red, blue, and green. The probability the spinner lands on red is 0.20. If the spinner is spun 5 times, what is the probability it lands on red exactly three times?

Kim has a bag of 10 white marbles and 15 black marbles. What is the probability that she will choose to marbles that are both the same colour without replacement 

Lebo had 3 blue pens, 2 red plens, 5 blue pens, and 2 pencils in her pencil case. What is the probability of taking a black pen and what is the probability of not taking a black pen?