12. Pet Allergies An analyst claims that about 70% of U.S. households own either : cat or a dog, and an estimated 10% of the U.S. population is allergic to animals. a. What is the probability that exactly 1 person in a class of 20 students owns either a cat or a dog? (Assume that no two students in the class come from the same household.) b. What is the probability that at most 3 students in a class of 20 students are allergic to animals?

12. Pet Allergies An analyst claims that about 70% of U.S. households own either : cat or a dog, and an estimated 10% of the U.S. population is allergic to animals. a. What is the probability that exactly 1 person in a class of 20 students owns either a cat or a dog? (Assume that no two students in the class come from the same household.) b. What is the probability that at most 3 students in a class of 20 students are allergic to animals?

College Algebra

7th Edition

ISBN:9781305115545

Author:James Stewart, Lothar Redlin, Saleem Watson

Publisher:James Stewart, Lothar Redlin, Saleem Watson

Chapter9: Counting And Probability

Section: Chapter Questions

Problem 5CC

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