What is the probability the arrow on the spinner does not stop on a number divisible by 3?
A. 3/4
B. 1/4
C. 7/8
D. 1/8
There are 8 equally likely outcomes on the spinner: the numbers 1, 2, 3, 4, 5, 6, 7, and 8. Out of these 8 outcomes, there are 6 numbers that are not divisible by 3: 1, 2, 4, 5, 7, and 8.
The probability that the arrow does not stop on a number divisible by 3 is therefore 6/8 = 3/4.
So the answer is A. 3/4.