Back to Understand that statistics can be used to gain information about a population by examining a sample — Problem 3 · Task Set 17

Understanding Statistics and Sampling

Grade 7·21 problems·~35 min·Common Core Math - Grade 7·standard·7-sp-a-1

Work through problems with immediate feedback

Fluency Practice

A company posts a survey on its website asking customers to rate its product quality. Customers see the survey and choose whether to respond. Is this sample biased or likely representative of all customers?

Likely representative — the survey is available to any customer who visits the website.

Biased — only customers who visit the website and choose to respond are included, which skews toward those with strong opinions.

Likely representative — a large number of responses will fix any bias.

Biased — the company designed the survey, so the results will favor the company.