Lesson 6.6 Name_________________________
Probability Rules Hour_____
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General Addition Rule for Two Events |
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Suppose that 60% of all customers of a
large insurance agency have automobile policies with the agency, 40% have homeowners policies, and 25% have both types of
policies. If a customer is randomly
selected what is the probability that he or she has at least one of these two
types of policies with the agency?
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What is the probably that a selected
customer has exactly one type of policy?
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General Multiplication Rule for Two
Events |
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Suppose that 20% of all teenage drivers in
a certain county received a citation for a moving violation within the past
year. Assume in addition that 80% of
those receiving such a citation attended traffic school so that the citation
would not appear on their permanent driving record. If a teenage driver from this county is
randomly selected what is the probability that he or she received a citation
and attended traffic school?
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