Questions from Statistics Principles


Q: According to the U.S. Census Bureau, the probability

According to the U.S. Census Bureau, the probability that a randomly selected head of household in the United States earns more than $100,000 per year is 0.202. The probability that a randomly selecte...

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Q: The probability that a randomly selected individual in the United States 25

The probability that a randomly selected individual in the United States 25 years and older has at least a bachelor’s degree is 0.094. The probability that an individual in the United States 25 years...

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Q: Suppose that a single card is selected from a standard 52-

Suppose that a single card is selected from a standard 52-card deck. What is the probability that the card drawn is a club? Now suppose that a single card is drawn from a standard 52-card deck, but we...

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Q: Suppose that a single card is selected from a standard 52-

Suppose that a single card is selected from a standard 52-card deck. What is the probability that the card drawn is a king? Now suppose that a single card is drawn from a standard 52-card deck, but we...

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Q: According to Pew Research, in 27% of marriages the woman

According to Pew Research, in 27% of marriages the woman has a bachelor’s degree and the marriage lasts at least 20 years. According to the Census Bureau, 35% of women have a bachelor’s degree. What i...

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Q: According to the U.S. National Center for Health Statistics

According to the U.S. National Center for Health Statistics, 0.15% of deaths in the United States are 25- to 34-year-olds whose cause of death is cancer. In addition, 1.71% of all those who die are 25...

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Q: According to the U.S. Census Bureau, 8.

According to the U.S. Census Bureau, 8.0% of 16- to 24-year-olds are high school dropouts. In addition, 2.1% of 16- to 24-year-olds are high school dropouts and unemployed. What is the probability tha...

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Q: According to the U.S. Census Bureau, 17.

According to the U.S. Census Bureau, 17.9% of U.S. households are in the Northeast. In addition, 5.4% of U.S. households earn $100,000 per year or more and are located in the Northeast. Determine the...

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Q: In a recent Harris Poll, a random sample of adult Americans

In a recent Harris Poll, a random sample of adult Americans (18 years and older) was asked, “When you see an ad emphasizing that a product is ‘Made in America,’ are you more likely to buy it, less lik...

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Q: Adult Americans (18 years or older) were asked whether they

Adult Americans (18 years or older) were asked whether they used social media (Facebook, Twitter, and so on) regularly. The following table is based on the results of the survey. (a) What is the proba...

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