Question 1
At a college, 60% of students take a math course this term, 45% take a science course, and 30% take both. What is the probability that a randomly chosen student takes a math course or a science course?
How to study for AP Statistics
Find your weakest unit first, fix it, then practice at the real pace. Spend at least a third of your time on typed free-response answers.
| Step 1 | A 32-minute diagnostic across all five units |
|---|---|
| Step 2 | Lessons on your weakest unit |
| Step 3 | Timed practice and full practice exams |
From now to March
- Work unit by unit, in course order.
- After each unit, do a timed set at about 2 minutes a question.
April and May
- Sit Section I and Section II of a practice exam under time.
- Rewrite any free-response part that lost a point, using the model answer.
- Review the units where your practice score is lowest.
Try 2 questions
Question 2
A one-sample t test of H₀: μ = 40 against Hₐ: μ ≠ 40 gives t = −2.45 with p-value 0.021. At α = 0.05, which conclusion is correct?
Next step
Questions people ask
How long should I study for AP Statistics?
Steady practice through the year works better than cramming. In the final six weeks, sit full timed sections and review every missed point.