8. About 29% of Americans own a cat. In a randomly selected group of 80 Americans, find the probability that at least 20 own a cat.

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Chapter1: Combinatorial Analysis
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Binomial probability
8. About 29% of Americans own a cat. In a randomly selected group of 80 Americans, find
the probability that at least 20 own a cat.
9. Forty percent of the U.S. population 16 years old and older participate in wildlife-related
activities (hunting, fishing, bird-watching). In a randomly selected group of 140 people at
least 16 years old, how many would you expect to participate in wildlife-related activities?
10. A Food Marketing Institute survey found that 56% of American consumers eat seafood
twice a month. In a randomly selected group of 75 American consumers, find the
probability that no more than 40 of them eat seafood twice a month.
Transcribed Image Text:8. About 29% of Americans own a cat. In a randomly selected group of 80 Americans, find the probability that at least 20 own a cat. 9. Forty percent of the U.S. population 16 years old and older participate in wildlife-related activities (hunting, fishing, bird-watching). In a randomly selected group of 140 people at least 16 years old, how many would you expect to participate in wildlife-related activities? 10. A Food Marketing Institute survey found that 56% of American consumers eat seafood twice a month. In a randomly selected group of 75 American consumers, find the probability that no more than 40 of them eat seafood twice a month.
8. About 29% of Americans own a cat. In a randomly selected group of 80 Americans, find
the probability that at least 20 own a cat.
9. Forty percent of the U.S. population 16 years old and older participate in wildlife-related
activities (hunting, fishing, bird-watching). In a randomly selected group of 140 people at
least 16 years old, how many would you expect to participate in wildlife-related activities?
10. A Food Marketing Institute survey found that 56% of American consumers eat seafood
twice a month. In a randomly selected group of 75 American consumers, find the
probability that no more than 40 of them eat seafood twice a month.
Transcribed Image Text:8. About 29% of Americans own a cat. In a randomly selected group of 80 Americans, find the probability that at least 20 own a cat. 9. Forty percent of the U.S. population 16 years old and older participate in wildlife-related activities (hunting, fishing, bird-watching). In a randomly selected group of 140 people at least 16 years old, how many would you expect to participate in wildlife-related activities? 10. A Food Marketing Institute survey found that 56% of American consumers eat seafood twice a month. In a randomly selected group of 75 American consumers, find the probability that no more than 40 of them eat seafood twice a month.
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