Answer to Question #291407 in Statistics and Probability for siy

Question

Lawrence performs a survey to determine the average number of minutes of exercise seventh-grade athletes get in one week. He gets a list of sports and the seventh-grade students participating in each sport. He then chooses 10 people from each list to complete the survey. How can Lawrence’s sample be improved to be more representative of the population?

Answer 1

To ensure that Lawrence's sample is improved and more representative of the population, then rather than 10 people, he can choose a sample from every third person on each list.