Question: Find the probability of randomly selecting a "Striped marble that is blue" from this list. P(Blue AND Striped). Write your answer as a fraction in simplest form.

Marble Collection

Red

Green

Blue

Total

Solid

8

6

12

26

Striped

Total

60

52

12

18

17

81

29

107

1 answer

First, find the total number of marbles that are both blue and striped. This would be the number in the intersection of the "Blue" row and the "Striped" column, which is 12.

Then, find the total number of marbles in the collection, which is given as 107.

The probability of randomly selecting a "Striped marble that is blue" is therefore 12/107, which cannot be simplified further.

So, P(Blue AND Striped) = 12/107.