Free SAT Practice Question

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ID: SAT-MATH-PSDA-021
Section: SAT Math - Problem Solving & Data Analysis (PS&DA)
Topic: Inference from sample statistics and margin of error
Difficulty level: Medium

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A grocery cooperative surveyed a random sample of \(250\) of its members about whether they used a mobile coupon on their most recent visit. The results, split by membership tier, are shown below.

Tier	Used a coupon	Did not use a coupon	Total
Premium	60	40	100
Standard	45	105	150
Total	105	145	250

The cooperative has \(4{,}000\) Standard-tier members in all. Based on the survey, which of the following is the best estimate of the number of Standard-tier members who did not use a mobile coupon on their most recent visit?

A105

B1,200

C2,320

D2,800

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