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Unformatted text preview: b. What is the probability that 3 buy brand A? Example 3: A department store is shipped 100 remote controlled cars of which 6 are defective. A customer selects 7 cars at random. a. What is the probability that at least 5 will be defective? b. What is the probability that at most 4 will be defective? Section 7.4 Use of Counting Techniques in Probability 3 Example 4: Eight cards are selected at random from a wellshuffled deck of 52 playing cards. a. What is the probability that either 4 face cards or 5 face cards are chosen? c. What is the probability that at least 2 hearts are chosen? Example 5: An urn contains 6 yellow and 8 blue marbles. Five marbles are chosen at random from the urn. What is the probability that at most 4 yellow marbles are chosen?...
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 Fall '10
 AbdelnourAhmedZaid
 Math, Counting, Probability

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