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Elementary Statistics: Picturing the World | 6th Edition | ISBN: 9780321911216 | Authors: Ron Larson; Betsy Farber
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Nutritional Information In a sample of 1000 U.S. adults, 150 said they are very

Chapter 3, Problem 24

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QUESTION:

Nutritional Information In a sample of 1000 U.S. adults, 150 said they are very confident in the nutritional information on restaurant menus. Four U.S. adults are selected at random without replacement. (Adapted from Rasmussen Reports) (a) Find the probability that all four adults are very confident in the nutritional information on restaurant menus. (b) Find the probability that none of the four adults are very confident in the nutritional information on restaurant menus. (c) Find the probability that at least one of the four adults is very confident in the nutritional information on restaurant menus. (d) Which of the events can be considered unusual? Explain.

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QUESTION:

Nutritional Information In a sample of 1000 U.S. adults, 150 said they are very confident in the nutritional information on restaurant menus. Four U.S. adults are selected at random without replacement. (Adapted from Rasmussen Reports) (a) Find the probability that all four adults are very confident in the nutritional information on restaurant menus. (b) Find the probability that none of the four adults are very confident in the nutritional information on restaurant menus. (c) Find the probability that at least one of the four adults is very confident in the nutritional information on restaurant menus. (d) Which of the events can be considered unusual? Explain.

ANSWER:

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Given that,

Nutritional Information In a sample of 1000 U.S. adults, 150 said they are very confident in the nutritional information on restaurant menus. Four U.S. adults are selected at random without replacement. (Adapted from Rasmussen Reports)

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