Question

(07.01 LC)

The table below shows the number of marbles of different colors in a bag:



Color of Marbles Number of Marbles
Pink
4
Blue
8
Green
1
Bryn draws a marble from the bag randomly without looking. He then draws another marble from the bag without replacing the first one. Which expression shows the probability of drawing blue marbles in both the trials? (1 point)

Group of answer choices

8 over 13 multiplied by 7 over 13

8 over 13 added to 7 over 12

8 over 13 multiplied by 7 over 12

8 over 13 added to 7 over 13

Answer 1

The third answer 8 over 13 multiplied by 7 over 12

Answer 2

8 over 13 multiplied by 7 over 12

Explanation:

The answer is 8 over 13 multiplied by 7 over 12 because the probability of choosing a blue marbel in the first trial was 8/13. This is because there are 13 marbles in all and 8 of them are blue. The second time, it was 7/12 because you had already picked up a marble and probably didn't put it back in the bag. You multiply 8/13 by 7/12 to find the overall probability of choosing two blue marbles in both trials.