Prove Theorem 7.8.

Ex) An insurance company currently insures 182 teenage drivers. Last year, 24 of the teenagers had to ﬁle a claim on their auto policy. Based on these results, the probability that a teenager will ﬁle a claim on his or her auto policy in a given year is: Ex) A bag of 100 tulip bulbs purchased from a nursery contains 30 red tulip bulbs, 45 yellow tulip bulbs, and 25 purple tulip bulbs. What is the probability that a randomly selected tulip bulb is yellow