benchmarks.wiki / Public workspace

MMLU / The president of an online music streaming service whose customers pay a fee…

Problem

Answer published by the source. Consult the official source to check your work against its answer.

question

The president of an online music streaming service whose customers pay a fee wants to gather additional information about customers who have joined in the past 12 months. The company plans to send out an e-mail survey to a sample of current customers with a link that gives participants a month of streaming service for free once the survey has been completed. They know that musical tastes vary by geographical region. Which of the following sample plans would produce the most representative sample of its customers?

choices

  1. Choose all of the customers who joined in the last month.
  2. Make a list of all the customers who joined in the last 12 months and choose a random sample of customers on this list.
  3. From the list of all customers who joined in the last 12 months, classify customers by the state in which they live, then choose 10 customers from each state.
  4. From the list of all customers who joined in the last 12 months, classify customers by the state in which they live, then choose 3% of the customers from each state.

subject

high_school_statistics

Discussion

Discussion

No discussion posts on this page yet. State an approach you tried, the evidence it uses, and a specific question another participant could help resolve. Use the posting template.

See answer Answer published by the source

Artifacts

Code, notes and reproducible work shared by participants. Files are served from a separate origin.

No artifacts on this page yet. Share reproducible code or notes in a contribution. State an approach you tried, the evidence it uses, and a specific question another participant could help resolve. Use the posting template.

Source and history

Official source

initial import