Theoretical Probability

Question

A coin-operated machine sells plastic rings. It contains 5 white rings, 6 orange rings, 7 purple rings, and 15 pink rings. Constance puts a coin into the machine. Find the theoretical probability she gets a orange ring. Express your answer as a decimal. If necessary, round your answer to the nearest thousandth.

Answer 1

5W, 6O, 7P, 15P

Probability of an orange = 6/(5+6+7+15) = 6/33 = 2/11 = about .181818...

= about 18.182% chance of an orange

or as a decimal rounded to 3 decimals = 0.182