Question

A bag contains 5 red cubes and 7 white cubes. Celinda will select one cube, put it in her pocket, and then select a second cube. Which expression gives the probability that she will select two red cubes? A. B. C. D.

Answer 1

Idnu

Explanation:

Answer 2

The number of ways of picking up a red cube out of 12 cubes are 5/12. Number of ways of picking up a second red cube is 4/11.
Thus probability of picking up 2 red cubes = 5/12 * 4/11 = 20/121.

20 / 121 = .165 or .17

So the probability of Celinda getting two red cubes is .17.