Question

sophia has some cubes of the same size in a bag. there are 5 red cubes, 2 yellow cubes, and 1 blue cube. if she reaches into the bag and selectes a cube, what is the propability that she will select a blue or yellow cube

Answer 1

3/8 is the probabilty thata Sophia selects a blue or yellow cube.

There are 8 cubes in the bag
1 is blue and 2 are yellow.
Probability is the number of favorable outcomes divided by the number of possible outcomes. That gives 3/8.