PSAT Math Multiple-Choice Practice Question 740

Question: 740

The data are collected from a survey of 500 randomly selected people in the United States. The researcher asked participants their ages and what type of social media they use the most frequently: video sharing, photo sharing, text sharing, or none. The goal of the researcher was to determine the general characteristics of social media use by different age groups throughout the United States.

Type of Social Media Use by Numbers of People in Different Age Groups
Age Group	Video Sharing	Photo Sharing	Text Sharing	No Social Media	Total
12–18	40	32	20	2	94
19–30	31	51	43	6	131
31–45	20	20	40	24	104
46–60	9	8	36	35	88
61–up	2	3	29	49	83

The survey summary states that the researcher collected the data "randomly." Which of these methods of finding survey participants would likely provide the most accurate results given the researcher's goal?

A. Ask for volunteer responses through television advertising and give a number for interested subjects to call in, ensuring a high level of motivation among survey participants

B. Have a survey booth at a local shopping mall where only every 5th person is selected to share his or her individual thoughts about social media use, ensuring that each participant provides photo ID to verify his or her identity

C. Post a survey advertisement on a variety of websites that appeal to a great number of demographic groupings, including income, gender, and ethnicity

D. Call randomly selected phone numbers from across the country, both cellular and landlines, and ask for household members of a particular random age group to share their thoughts

PSAT Math Multiple-Choice Practice Question 740

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