A bag of marbles contains 4 green marbles, 3 blue marbles, 2 red marbles, and 5 yellow marbles. How many possible outcomes are there when choosing a marble from the bag

4

Step-by-step explanation:

Possible outcomes means potential colors that you can grab from the bag. We won't count all 4 green marbles as outcomes, because they're all the same event happening.

There are 4 colors of marble (green, blue, red, yellow), so there are 4 possible outcomes for what can come out of the bag.