There is a rack of 12 billiard balls. Balls numbered 1 through 8 are? solid-colored. Balls numbered 9 through 12 contain stripes. If one ball is selected at? random, determine the odds against it being striped.

Odds against it being striped = 2/3 = 0.6667 = 66.67 %

Explanation:

Total number of billiard balls = 12

Total number of solid colored balls = 8

Total number of striped colored balls = 4

Probability of an outcome = Number of favorable outcome / Total number of outcome.

Here total number of outcomes = Total number of billiard balls = 12

Number of favorable outcomes = Total number of striped colored balls = 4

Probability of ball being striped = 4/12 = 1/3 = 0.333 = 33.33 %

So odds in favor of being striped = 1/3

Odds against it being striped = 1-1/3 = 2/3 = 0.6667 = 66.67 %