P58StatisticsBeginnerDiagnose5 min
Diagnose Selection Bias in a Voluntary Survey Result
Diagnose why a voluntary survey can overstate sentiment.
#diagnose#selection-bias#surveys
Scenario
A product email invites all users to a voluntary survey. Of 300 respondents, 82% say they are satisfied, but response rate is 3%.
Problem statement
Assess the claim that 82% of all users are satisfied.
Your Task
- Identify the bias risk.
- Explain why response rate matters.
- Name evidence that would strengthen the claim.
Related Concepts
Selection biasSampling frameNonresponse
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