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5.54 A survey by Frank N.Magid Associates revealed that 3% of Americans are not connected to...

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Basic Math

5.54 A survey by Frank N.Magid Associates revealed that 3% ofAmericans are not connected to the Internet at home. Anotherresearcher randomly selects 70 Americans. a. What is the expectednumber of these who would not be connected to the Internet athome?
b. What is the probability that eight or more are not connected tothe Internet at home? c. What is the probability that between threeand six (inclusive) are not connected to the Internet at home?

5.51 An office in Albuquerque has 24 workers includingmanagement. Eight of the workers commute to work from the west sideof the Rio Grande River.Suppose six of the office workers arerandomly selected. a. What is the probability that all six workerscommute from the west side of the Rio Grande?

b. What is the probability that none of the workers commute fromthe west side of the Rio Grande?

c. Which probability from parts (a) and (b) was greatest? Why doyou think this is?

d. What is the probability that half of the workers do notcommute from the west side of the Rio Grande?

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Question 554PAmericans not connected to the    See Answer
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