Probability of Drawing a Red or Green Ball

A bag contains 6 red balls, 4 blue balls, and 10 green balls. If a ball is drawn at random from the bag, what is the probability that it is either red or green?

To find this probability, remember that the probability of an event is given by the formula:

$$ P(A) = \frac{\text{Number of favorable outcomes}}{\text{Total number of outcomes}} $$