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1. Your department just shipped 100 engines, and all of them were free of defects. Please tell me which of the following written descriptions is the complement of this event? (Be careful-I HIGHLY suggest referring to the text one more time. This one is really tricky-but the answer is in the test!)
a. All of the engines are defective.
b. At least one of the engines is defective.
c. None of the engines are defective.
2. Express the degree of likelihood as a probability value. "You have a 50-50 chance of choosing the correct answer." Whew-easy point! You are NOT allowed to get this one wrong! :-).
a. 0.25
b. 0.50
c. 0.90
d. 50
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the go transportation system of buses and commuter trains operates on the honor system. train travelers are expected to
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Assume that this city has 1100 shoppers aged 12 to 14 years and 900 shoppers aged 15 to 17 years. Find the mean amount spent per person per month by shoppers aged 12 to 17 years in this city.
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