AP STATISTICS UPDATED 3 MOCK EXAM WITH ANSWER RATIONALES 2026

AP STATISTICS UPDATED 3 HIGH-YIELD TOPICS
SUMMARY 2026

◉ Hypothesis test interpretation when p-value < α.
Answer: Since p-value < α, we REJECT the null hypothesis. We have
evidence to suggest that the alternative hypothesis is true.


◉ Hypothesis test interpretation when p-value > α.
Answer: Since p-value > α, we FAIL TO REJECT the null hypothesis.
We do not have evidence to suggest that the alternative hypothesis is
true.


◉ Interpreting p-value.
Answer: The probability of obtaining our sample data (or further
from our parameter) if the null hypothesis is true.


◉ Skewed Left Box Plot.
Answer:


◉ Skewed Right Box Plot.
Answer:

, ◉ Symmetric Box Plot.
Answer:


◉ IQR.
Answer: Q3-Q1


◉ IQR outlier rule.
Answer: x > Q3 + 1.5IQR
x < Q1 - 1.5IQR


◉ Z-score outlier rule.
Answer: If |z|>2.5 it's an outlier (more than 2.5 standard deivations
away)


◉ Z-score formula.
Answer:


◉ Z-score Interpretation.
Answer: This context is ____ standard deviations above/below the
mean context.


◉ Measures of Center.