Question

A jar contains 3 red, 4 blue, and 5 white marbles. what is the probability of drawing first a red and then, without replacement, a white marble?

Answer 1

5/44

Explanation:

You start with a 3/12 probability of getting red and then once there are only 11 marbles left you have a 5/11 chance of getting a white marble.

3/12 x 5/11 = 15/126 reducable to 5/44