A sporting goods store received an order of 90 baseball caps, of which 18 were green. If 1 of the 90 caps is selected at random, what is the probability it will not be green?
First, we need to find the total number of non-green caps in the order.
Total number of caps = 90
Number of green caps = 18
Number of non-green caps = Total - Green
Number of non-green caps = 90 - 18
Number of non-green caps = 72
Now, we can calculate the probability of selecting a non-green cap by dividing the number of non-green caps by the total number of caps:
P(not green) = Number of non-green caps / Total number of caps
P(not green) = 72 / 90
P(not green) = 0.8
Therefore, the probability of selecting a cap that is not green is 0.8 or 80%.