you have the numbers 1-24 written on slips of paper. if you choose one slip at random, what is the probability that you will select a number that is not divisible by 3?
First find the numbers that are divisible by 3. 3, 6, 9, 12, 15, 18, 21, 24 There are 8 numbers divisible by 3 so there are 16 that are not divisible by 3. P(not div by 3) = 16/24 = 2/3
