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Sampling Distributions and Inferential Statistics. Standardized test statistic: statistic − parameter standard error of the statistic. Confidence interval: statistic ± ( critical value )( standard error of statistic ) Chi-square statistic: 2 ∑ ( observed − expected ) 2. χ = expected III.
Download free-response questions from past AP Statistics exams, along with scoring guidelines, sample responses from exam takers, and scoring distributions.
See how students performed on each AP Exam for the exams administered in 2023. PDF. 4.42 KB. 2024 AP score distribution tables show the percentages of 1s, 2s, 3s, 4s, and 5s for each AP subject for all AP students.
The exam covers the following course content categories: Exploring One-Variable Data: 15%‒23% of test questions. Exploring Two-Variable Data: 5%‒7% of test questions. Collecting Data: 12%‒15% of test questions. Probability, Random Variables, and Probability Distributions: 10%‒20% of test questions.
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Feb 14, 2020 · It covers only the information tested on the exam, so you can make the most of your valuable study time. Written by an experienced AP® Statistics teacher, our easy-to-read format gives you a...
- Michael D'Alessio
- Research & Education Assoc., 2020
- 2, revised
Sample Question. AP® STATISTICS. Note: This is an example of 2020 Question 2, a multi-focus free-response item with allotted time of 15 minutes (plus 5 minutes to submit). Question 1 is a longer multi-focus free-response item, with allotted time of 25 minutes (plus 5 minutes to submit). Question 2.
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May 26, 2019 · Section II: Probability and Distributions. Most of the formulas in this section have been arranged in a table. The formulas for binomial and geometric probability in the new formula sheet use P(X=x) instead of P(X=k) and replace all instances of k with x.
