A study of injuries to in-line skaters used data from the National Electronic Injury Surveillance System, which collects data from a random sample of hospital emergency rooms (ERs). The researchers interviewed 161 people who came to ERs with injuries from in-line skating. The interviews found that 53 people had been wearing wrist guards, and 6 of these people had wrist injuries. Of the 108 people who had not worn wrist guards, 45 had wrist injuries.
What is the population that was sampled in this survey?

Question

Quizplus · Accepted Answer

The population that was sampled in this survey is all in-line skaters admitted to an ER for skating injuries, as the study specifically focuses on injuries caused by in-line skating. Option A only refers to those who were admitted with in-line skating injuries and is not representative of the entire population of in-line skaters. Options B and C are too broad and do not specifically target the population of interest.

A Study of Injuries to In-Line Skaters Used Data from the National