Question

A researcher is comparing the effectiveness of three devices designed to help people who snore. There are 210 people who snore participating in the experiment. Using a table of random digits starting from the first row and column, the researcher will randomly place the participants into three equally sized treatment groups suitable for comparison.
Which number range would be needed to label the subjects correctly?

0–2
1–3
000–210
001–210

Answer 1

Answer: D

Explanation:

Given:

210 people are participating in experiment

We need to label subjects from 001 to 210

Since there is no value in using 000 to indicate someone