Introduction to Probability Unit Test Review and Test 100%
Introduction to Probability Unit Test Review and Test 100% The Venn diagram shows the number of customers who have purchased different types of pets from a pet store, where C represents customers who have purchased cats, D represents customers who have purchased dogs, and F represents customers who have purchased fish. How many people are in the set C ∩ D? - ANSWER 4 A coach chooses six out of eight players to go to a skills workshop. If order does not matter, in how many ways can he choose the players for the workshop? - ANSWER 28 A number cube has faces numbered 1 to 6. What is true about rolling the number cube one time? Check all that apply. - ANSWER S = {1, 2, 3, 4, 5, 6} If A is a subset of S, A could be {5, 6}. If a subset A represents the complement of rolling a 5, its sample space is A = {1, 2, 3, 4, 6}. A farmer grows vegetables on seven acres, fruit on six acres, and flowers on two acres. Out in his fields, he finds a ladybug. To the nearest tenth of a percent, what is the theoretical probability that the ladybug was not found within the acres of flowers? - ANSWER 86.7% Nico owns 11 instructional piano books. Two are beginner books, six are intermediate books, and three are advanced books. If two books are randomly chosen from the collection, one at a time, and replaced after each pick, what is the probability that he first chooses an advanced book and then chooses a beginner book? - ANSWER 6/121 The manager of a grocery store reports that there is a 12 percent chance that a customer buys apples during a shopping trip, a 5 percent chance that a customer buy apples and carrots, and a 17 percent chance that a customer buys apples or carrots. What is the probability of a customer buying carrots? - ANSWER 10%
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