Question

There are 3 yellow, 5 red, 4 blue, and 8 green marbles in a bag. Once a marble is selected, it is not replaced. Find the probability of selecting two blue marbles.

Group of answer choices

12/20

3/95

12/400

16/20

Answer 1

4/20 x 3/19 = 3/95

Explanation:

The chance for the first marble is 4/20 (1/5), multiplied by the second event, which probability is 3/19 (with removal), becomes 3/95 (fundamental counting principle).