Questions from Statistics


Q: In a survey of randomly selected high school students, the subjects

In a survey of randomly selected high school students, the subjects are asked how many cigarettes they smoke each day.

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Q: After randomly selecting 1009 adults and surveying each of them, a

After randomly selecting 1009 adults and surveying each of them, a pollster was able to 8 Speaking of Statistics determine that precisely 54% of all American adults are not comfortable having drones m...

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Q: A USA Today report stated a survey of 22,000 high

A USA Today report stated a survey of 22,000 high school students found that 39% of them reported being tired on most school days. The margin of error is less than 0.1 percentage point. Can we safely...

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Q: Periodically, a survey is conducted in which subjects are asked if

Periodically, a survey is conducted in which subjects are asked if they wash their hands after using a public restroom.

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Q: The police commissioner in New York City estimates the annual value of

The police commissioner in New York City estimates the annual value of counterfeit goods sold in the city.

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Q: Speeds of cars are recorded by a police officer who uses a

Speeds of cars are recorded by a police officer who uses a radar gun.

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Q: The accuracy of gas pumps is routinely measured by government agencies that

The accuracy of gas pumps is routinely measured by government agencies that collect samples using measuring devices known to be accurate.

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Q: You receive a Visa credit card bill for $512.50

You receive a Visa credit card bill for $512.50, but it includes a charge of $8.00 that was not valid. (That is, the true credit card bill should be $8.00 less than the bill claims.)

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Q: The official distance for a marathon is 26 miles 385 yards,

The official distance for a marathon is 26 miles 385 yards, or 26.21875 miles, but the organizers of a marathon map a course that is actually 26.34567 miles in length.

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Q: The actual (true value) amount of change due after a

The actual (true value) amount of change due after a gallon of milk is purchased is $12.00, but the incorrect amount of $2.00 is given instead.

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