Questions from Statistics


Q: Media commonly report survey results giving the sample size and some percentage

Media commonly report survey results giving the sample size and some percentage, but technology typically requires the actual number of particular responses instead of the percentage. In a Harris surv...

See Answer

Q: A New York Times editorial criticized a chart caption that described a

A New York Times editorial criticized a chart caption that described a dental rinse as one that “reduces plaque on teeth by over 300%.” If the dental rinse removes all of the plaque, what percentage i...

See Answer

Q: The number of daily newspapers in the United States is now 1486

The number of daily newspapers in the United States is now 1486, and it was 2226 in 1990.

See Answer

Q: There are now 256 million registered passenger cars, and in 1990

There are now 256 million registered passenger cars, and in 1990 there were 193 million.

See Answer

Q: The U.S. population is now 323,447,

The U.S. population is now 323,447,281, and in 2000 it was 282,171,957.

See Answer

Q: There were 1,038,280 bankruptcy cases filed last year

There were 1,038,280 bankruptcy cases filed last year, and in the year 2000 there were 1,276,900 bankruptcy cases filed.

See Answer

Q: In a Gallup poll of 557 randomly selected adults, 51%

In a Gallup poll of 557 randomly selected adults, 51% said that they were underpaid. The margin of error is 4 percentage points.

See Answer

Q: The daily circulation of the Wall Street Journal is currently 2.

The daily circulation of the Wall Street Journal is currently 2.38 million (the largest in the country). The daily circulation of the New York Times is currently 1.87 million (the second largest in th...

See Answer

Q: Last month, 34,781 Toyota Camry cars were sold,

Last month, 34,781 Toyota Camry cars were sold, and there were 10,096 Ford Mustangs sold.

See Answer

Q: Chicago’s O’Hare Airport handled 67 million passengers last year. The busiest

Chicago’s O’Hare Airport handled 67 million passengers last year. The busiest airport in the world, Atlanta’s Hartsfield Airport, handled 95 million passengers last year.

See Answer