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SigmaQuest: Learn Statistics
AP Stats course, games & exams
NICOLAS JORGE PETRIDES · Education
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App info
- Developer
- NICOLAS JORGE PETRIDES
- Category
- Education, Games
- Released
- Sep 9, 2026
- Version
- 1.0 (Sep 9, 2026)
- Price
- Free
- Size
- 6.7 MB
- Requires
- iOS 18.0
- Age rating
- 4+
- Languages
- English
In-app purchases
| The Central Limit | $1.99 |
| Alpha | $1.99 |
| Outlier | $1.99 |
| Vegas | $1.99 |
| Asymp | $1.99 |
| Bayes | $1.99 |
| Nutty | $1.99 |
| Professor Sigma | $1.99 |
| Gauss | $1.99 |
| Unlock All Buddies | $9.99 |
Current prices, App Store US.
🔒 Price history2 snapshots: when prices changed and new plans appearedGet Pro access
About SigmaQuest: Learn Statistics
SigmaQuest turns a full statistics course into something you can actually finish. It starts at "what is a variable" and ends at chi-square, regression, and the ways a real study goes wrong. Everything works offline. No account, no sign-up, nothing to log into. THE COURSE • 16 units, 112 lessons, 671 questions — the whole AP Statistics syllabus, plus a closing unit on p-hacking, Simpson's paradox and charts that lie • Seven kinds of question, not four: multiple choice, true/false, fill in the blank, matching, a numeric keypad for the ones you have to actually compute, and two kinds of chart question • Charts are drawn live inside the question — histograms, boxplots, dotplots, scatterplots and normal curves, not pictures of them • Every question you miss comes back on a spaced-repetition schedule that widens as you get it right, and only leaves once it has survived weeks THIRTEEN COURSES,…
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