Eight balls numbered 1 to 8 are placed in a bag. Some of the balls are grey and some are white. The balls numbered 1, 2, 5, and 7 are grey. The balls numbered 3, 4, 6, and 8 are white. A ball will be selected from the bag at random. The 8 possible outcomes are listed below. Note that each outcome has the same probability. 1 2 3 4 5 6 7 8
Complete parts (a) through (c). Write the probabilities as fractions.
(a) Check the outcomes for each event below. Then, enter the probability of the event.
Outcomes 4 5 1 2 3 6 7
Event A: The selected ball is white lo
Event B: The selected ball has an even number on it.
(b) Compute the following.
P(A) + P(B) – P(A and B) = ?
(c) Select the answer that makes the equation true. P(A) +P(B) – P(A and B) = ?