Statistics - StatRise

Statistics calculator with step-by-step probability tools, lessons and quizzes.

Study statistics and probability with StatRise, a focused learning app for AP Statistics, college intro stats, and data science prep. Use it when you need a statistics solver, probability calculator, formula reference, quiz app, or clear study guide before an exam.

StatRise is built around one goal: help you understand the calculation, not just copy the final answer.

Learn the core topics
- 54 short lessons across descriptive statistics, probability, distributions, sampling, inference, regression, and correlation
- Clear formulas, definitions, worked examples, and practical tips
- Coverage for mean, median, mode, standard deviation, variance, quartiles, IQR, skewness, Bayes theorem, conditional probability, normal distribution, binomial distribution, Poisson distribution, Central Limit Theorem, confidence intervals, hypothesis testing, z-tests, t-tests, chi-square tests, ANOVA, linear regression, residuals, and correlation

Solve with calculators
- 39 statistics and probability calculators
- Step-by-step solutions for Pro users
- Descriptive stats, probability, combinatorics, distributions, hypothesis tests, confidence intervals, and regression tools
- Fast checks for homework, exam review, lab work, and self-study

Practice for exams
- 120 practice questions with detailed explanations
- Mixed practice across all topics
- Timed exam mode for test prep
- Mistake notebook to review missed questions
- Weak-topic review based on missed questions

Explore with simulations
- Coin and dice probability simulator
- Distribution explorer with adjustable parameters
- Central Limit Theorem visualizer
- Confidence interval coverage simulator
- Type I and Type II error visualizer

Private by design
StatRise does not require an account and has no ads. Lessons, calculators, quizzes, progress, and simulations run on your device. Core study tools work offline after install. An internet connection is only needed for Google Play purchases, subscription checks, and restoring Pro access.

Base version includes:
- First 2 learning modules
- Descriptive statistics calculators
- Probability calculators
- Mixed practice
- Coin and dice simulator

StatRise Pro unlocks:
- All 6 learning modules
- All 39 calculators with step-by-step solutions
- Unlimited practice
- Timed exams
- Mistake notebook
- Weak-topic review
- All 5 interactive simulations

Whether you are learning statistics for the first time, studying AP Statistics, preparing for a college exam, or building probability intuition, StatRise gives you a practical statistics calculator and study system in one app.