Answer:
Step-by-step explanation:
Probability is found by dividing the number of favorable outcomes by the total number of 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).
This fraction cannot be reduced, so the probability of selecting a blue or green marble is <u>8/13.</u>