Probability of Drawing Blue or Green Marbles

In a bag, there are 6 red, 4 blue, and 10 green marbles. If a marble is drawn at random from the bag, what is the probability that it is either blue or green?

To solve the problem, first calculate the total number of marbles in the bag. Then, find the number of favorable outcomes (the number of blue and green marbles) and use the formula for probability:

Probability = \( \f\frac{\text{Number of favorable outcomes}}{\text{Total number of outcomes}} \