The cooler at a picnic contained 4 apple juice boxes, 8 orange juice boxes, and 6 fruit punch juice boxes. A juice box is selected at random. What is the probability of the complement of choosing an orange juice box?

There are 4 + 8 + 6 = 18 juice boxes total. The complement of choosing orange means choosing any box that is not orange, so there are 4 + 6 = 10 such boxes. The probability is 10/18 = 5/9, so the correct choice is 5 ninths.

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