Running out of time before the AP Statistics exam? This last-minute cram guide covers the inference procedures that appear every year, the "in context" FRQ requirements, and what to memorize before you walk in.
AP Statistics Exam Structure
Section I: 40 MCQ in 90 minutes (50% of score). Section II: 6 FRQs in 90 minutes (50%) — 5 short FRQs (4 pts each) plus the 12-point Investigative Task.
Inference Procedures to Know Cold
- One-sample t-test and t-interval: Always check conditions (random, normal/large sample, independent). Know the test statistic formula and what df to use.
- Two-sample t-test and t-interval: "Random" condition means two independent random samples or random assignment to treatments.
- Chi-square goodness-of-fit: Tests whether observed counts match expected counts. Expected counts must each be ≥ 5.
- Chi-square test for independence: Tests association between two categorical variables in a two-way table.
- Linear regression t-test: Tests H₀: β = 0. Know the conditions (LINER: Linear, Independent, Normal residuals, Equal spread, Random).
The "In Context" Rule
Every statistical conclusion on the FRQ section must reference the specific scenario — name the variables, population, or study from the problem. "We reject H₀" is worth 0 points. "We have sufficient evidence to conclude that the mean resting heart rate for marathon runners is less than 60 bpm" earns full credit.
AimFive's Cram Mode queues your 20 weakest AP Statistics problems for a focused last-minute drill — inference procedures, probability, and data analysis all in one session.
AP Statistics Practice Questions · AP Statistics Study Guide · How to Get a 5 on AP Stats
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