A die has six faces numbered 1 through 6. If a die is tossed once, the possible outcomes are 1, 2, 3, 4, 5, or 6.
The probability of finding 3 or less is the sum of the probabilities of finding 1, 2, or 3.
Since each outcome is equally likely, the probability of finding any specific outcome is 1/6. Therefore, the probability of finding 3 or less is (1/6) + (1/6) + (1/6) = 3/6 = 1/2