a. What is the probability that 15 or more of these consumers have called an information line for a product? b. What is the probability that more than 20 of these consumers have called an information line for a product? c. What is the probability that fewer than 10 of these consumers have called an information line for a product?
a. What is the probability that 15 or more of these consumers have called an information line for a product? b. What is the probability that more than 20 of these consumers have called an information line for a product? c. What is the probability that fewer than 10 of these consumers have called an information line for a product?
Chapter8: Sequences, Series,and Probability
Section8.7: Probability
Problem 50E: Flexible Work Hours In a recent survey, people were asked whether they would prefer to work flexible...
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An increasing number of consumers believe they have to look out for themselves in the marketplace. According to a survey conducted by the Yankelovich Partners for USA Weekend magazine, 60% of all consumers have called an information line for a product. Suppose a random sample of 25 consumers is contacted and interviewed about their buying habits.
| a. What is the probability that 15 or more of these consumers have called an information line for a product? |
| b. What is the probability that more than 20 of these consumers have called an information line for a product? |
| c. What is the probability that fewer than 10 of these consumers have called an information line for a product? |
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