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.
See AnswerQ: 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...
See AnswerQ: 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...
See AnswerQ: 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.
See AnswerQ: 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.
See AnswerQ: 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.
See AnswerQ: 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.
See AnswerQ: 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.)
See AnswerQ: 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.
See AnswerQ: 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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