Question

A bag holds 13 marbles. 6 are blue, 2 are green, and 5 are red.

Answer 1

`\boxed{(8)/(13) }`

Explanation:

Probability is found by dividing the number of favorable outcomes by the total number of outcomes.

`\text{P}=\frac{\text{favorable outcomes}}{\text{total outcomes}}`

For this problem, the favorable outcome is selecting a blue or green marble. There are 8 outcomes for this because there are 6 outcomes for blue and 2 fr green.

The total outcomes are all the marbles. Each marble could be an outcome, so there are 13 outcomes (1 for each marble).

`\text{P}=(\text{blue or green})=(8)/(13)`

This fraction cannot be reduced, so the probability of selecting a blue or green marble is 8/13.

Complete Question:

A bag holds 13 marbles, 6 are blue, 2 are green, and 5 are red. You select a marble from the bag. What is the probability that the marble you select is either blue or green?

A. 5/26

B. 8/13

C. 5/13

D. 8/26