Mathematics

Gwendolyn

30 August, 20:31

The number of marbles of different colors stored in a hat is listed below:

4 red marbles

10 green marbles

7 blue marbles

Without looking in the hat, Dan takes out a marble at random. He replaces the marble and then takes out another marble from the hat. What is the probability that Dan takes out a blue marble in both draws?

2 / 21

1 / 9

1 / 2

2 / 3