A wheel has 8 equally sized slices numbered from 1 to 8. Some are grey and some are white.
The slices numbered 2, 3, 4, 5, and 7 are grey.
The slices numbered 1, 6, and 8 are white.
The wheel is spun and stops on a slice at random.
Let X be the event that the wheel stops on a white slice, and let P(x) be the
probability of X.
81
7
2.
6 3
5 4
Let not X be the event that the wheel stops on a slice that is not white, and let
P(not X) be the probability of not X.