You're viewing Maya's account — AP Statistics, exam in 18 days. Sample student · illustrative data.
Score estimate
3tracking a 3 → path to a 5
Exploring DataStrong
Sampling & ExperimentsStrong
ProbabilityShaky
Inference for ProportionsNeeds work
Inference for MeansNeeds work
Graded free-response · the feedback free tools can't give
“A 95% confidence interval means there's a 95% chance the true proportion is in this interval.”
1 of 2 points. The interpretation describes probability about a fixed parameter — the classic reversal. The 95% refers to the method: across many samples, 95% of such intervals capture the true proportion. Rewrite it as a statement about the procedure, not the parameter.
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