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Evaluating Statistical Reports · Part 3 of 3
3 exam-style questions with model answers, plus 3 quick multi-choice questions — every question on this part of the standard, grouped by the 1 page of notes they come from.
Write a full answer before you reveal the model one. That comparison is where the learning happens.
A bar graph's y-axis starts at 90 instead of 0. Explain, in one sentence, why this can mislead.
A report finds towns with more ice-cream shops have more sunburn cases, and concludes ice cream causes sunburn. Explain the flaw.
A headline reads 'New supplement cuts cold risk by 50%!' based on a company study where the cold rate fell from 4 in 1000 to 2 in 1000. Evaluate the claim.