If one of the 255 subjects is randomly selected, find the probability that the person is over 40 and prefers cola.

Under the "cola" heading, to the right of "under 40 years of age," we find the count 20. This is the number of subjects who 1) prefer cola AND 2) are over 40. The probability that one of these 20 subjects will be chosen is 20/255, or .078.

fist on the left goes with the third on the right. second on the left goes with the fourth on the right. third on the left goes with the second on the right. the fourth on the left goes with first on the right