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Resistance training is a popular form of conditioning aimed at enhancing sports

ID: 3317819 • Letter: R

Question

Resistance training is a popular form of conditioning aimed at enhancing sports performance and is widely used among high school, college, and professional athletes, although its use for younger athletes is controversial. A random sample of 4111 patients aged 8–30 admitted to U.S. emergency rooms with the injury code "weightlifting" was obtained. These injuries were classified as "accidental" if caused by dropped weight or improper equipment use. The patients were also classified into the four age categories "8–13," "14–18," "19–22," and "23–30." Here is a two-way table of the results:

The percent of the 14- to 18-year-olds in the sample whose injuries were classified as "accidental" is which of the following?

higher than the percent for 23- to 30-year-olds

lower than the percent for 23- to 30-year-olds    

about the same as the percent for 23- to 30-year-olds

Age 8-13 14-18 19-22 23-30 Accidental 295 655 239 363 Not accidental 102 916 533 1008

Explanation / Answer

as number of 14- to 18-year-olds in accidental category is higher than  number of  23- to 30-year-olds in accidental category threfore

higher than the percent for 23- to 30-year-olds

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