Critiquing Statistical Reports (Grade 10)
Free printable Grade 10 worksheet on critiquing statistical claims and survey reports seen in the media.
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Grade 10 · Math worksheet
Name
Date
Math
Statistics: Critiquing Reports in the Media
Read each claim and explain what is misleading, or what should be checked before believing it.
- 1.Two variables rise together in a graph, e.g. ice cream sales and drowning incidents. Does this prove one causes the other?
- 2.A headline says "Coffee drinkers live longer!" based on a survey of coffee drinkers' ages. What is missing from this study?
- 3.A company survey found "87% of customers are satisfied", but only customers who left a review were counted. What is the problem?
- 4.A political poll only surveys people who answer their landline phone during the day. Who might be missing from this sample?
- 5.A study of 15 people concludes a new vitamin 'boosts energy in everyone'. What is the issue with this conclusion?
- 6.A report shows a graph with a broken (non-zero) y-axis to make a small change look dramatic. What should a careful reader check?
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