How does the Crimsora AP Statistics tutor work?

Crimsora teaches AP Statistics one concept at a time with a voice-first AI tutor, then reinforces it with practice, FRQs, and targeted review of your weak spots.

What does AP Statistics cover?

All 9 College Board units across 48 lessons, each mapped to the official CED learning objectives.

Can I try AP Statistics for free?

Yes — start a free trial lesson with no signup. You only create an account once you finish your first concept and want to save your progress.

AP Statistics

Master AP Statistics across all 9 College Board units with a voice-first AI tutor: concepts, practice, FRQs, and personalized gap-filling.

48 lessons · 9 College Board units

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Unit 1

U1.1 Variables and Categorical Data
AP-STATS-1.1-1.4
U1.5 Quantitative Graphs (Dotplot, Stemplot, Histogram)
AP-STATS-1.5
U1.6 Describing a Distribution (SOCS)
AP-STATS-1.6
U1.7 Summary Statistics and Boxplots
AP-STATS-1.7-1.8
U1.9 Comparing Distributions
AP-STATS-1.9
U1.10 The Normal Distribution
AP-STATS-1.10
U1 FRQ Practice
AP-STATS-1-FRQ

Unit 2

U2.1 Two Categorical Variables
AP-STATS-2.1-2.3
U2.4 Scatterplots — DUFS Description
AP-STATS-2.4
U2.5 Correlation
AP-STATS-2.5
U2.6 Least Squares Regression
AP-STATS-2.6-2.8
U2.7 Residuals and Residual Plots
AP-STATS-2.7-2.9
U2 FRQ Practice
AP-STATS-2-FRQ

Unit 3

U3.1 Random Sampling Methods
AP-STATS-3.1-3.3
U3.4 Bias and Sampling Pitfalls
AP-STATS-3.4
U3.5 Experimental Design
AP-STATS-3.5-3.6
U3.7 Inference and Generalizability
AP-STATS-3.7
U3 FRQ Practice
AP-STATS-3-FRQ

Unit 4

U4.1 Probability Foundations
AP-STATS-4.1-4.3
U4.4 Conditional Probability and Independence
AP-STATS-4.4-4.5
U4.6 Random Variables — Mean and SD
AP-STATS-4.6-4.7
U4.8 Combining Random Variables
AP-STATS-4.8
U4.9 Binomial Distribution
AP-STATS-4.9-4.10
U4.11 Geometric Distribution
AP-STATS-4.11
U4 FRQ Practice
AP-STATS-4-FRQ

Unit 5

U5.1 The Sampling Distribution
AP-STATS-5.1-5.4
U5.3 The Central Limit Theorem
AP-STATS-5.3
U5.5 Sampling Distribution of p̂
AP-STATS-5.5-5.6
U5.7 Sampling Distribution of x̄
AP-STATS-5.7-5.8
U5 FRQ Practice
AP-STATS-5-FRQ

Unit 6

U6.1 One-Proportion Confidence Interval
AP-STATS-6.1-6.3
U6.4 One-Proportion z-Test
AP-STATS-6.4-6.6
U6.7 Type I, Type II, and Power
AP-STATS-6.7
U6.8 Two-Proportion z-Interval
AP-STATS-6.8-6.9
U6.10 Two-Proportion z-Test
AP-STATS-6.10-6.11
U6 FRQ Practice
AP-STATS-6-FRQ

Unit 7

U7.1 One-Sample t-CI for a Mean
AP-STATS-7.1-7.4
U7.5 One-Sample t-Test for a Mean
AP-STATS-7.5-7.6
U7.7 Two-Sample t-CI for Difference of Means
AP-STATS-7.7-7.8
U7.9 Two-Sample t-Test
AP-STATS-7.9-7.10
U7 FRQ Practice
AP-STATS-7-FRQ

Unit 8

U8.1 Chi-Square Goodness of Fit
AP-STATS-8.1-8.3
U8.4 Chi-Square for Two-Way Tables
AP-STATS-8.4-8.6
U8.7 Choosing Categorical Procedures
AP-STATS-8.7
U8 FRQ Practice
AP-STATS-8-FRQ

Unit 9

U9.1 Confidence Interval for Slope
AP-STATS-9.1-9.3
U9.4 t-Test for Slope
AP-STATS-9.4-9.5
U9 FRQ Practice and Procedure Selection
AP-STATS-9-FRQ

Frequently asked questions

How does the Crimsora AP Statistics tutor work?: Crimsora teaches AP Statistics one concept at a time with a voice-first AI tutor, then reinforces it with practice, FRQs, and targeted review of your weak spots.
What does AP Statistics cover?: All 9 College Board units across 48 lessons, each mapped to the official CED learning objectives.
Can I try AP Statistics for free?: Yes — start a free trial lesson with no signup. You only create an account once you finish your first concept and want to save your progress.

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