# Art of Stat: Concepts — Central Limit Theorem and more

> Interactive educational tool for statistical concepts like CLT, regression, and hypothesis testing. (iPhone/iPad app by Bernhard Klingenberg.)

- Source: https://appshunter.io/ios/app/art-of-stat-concepts/id6444956478 (this page in markdown: same URL + `.md`)
- Developer: [Bernhard Klingenberg](https://appshunter.io/developer/1564877195)
- Category: Education, Utilities
- Price: Free with in-app purchases
- Rating: 5.00/5 from 10 App Store ratings · 2 written reviews indexed
- Age rating: 4+
- Requires: iOS 15.1 · 29 MB
- Languages: English
- Released: 2023-01-15
- Data updated: 2026-07-08
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/art-of-stat-concepts/id6444956478/reviews.md

## What is Art of Stat?

Explore the Central Limit Theorem, learn about the correlation coefficient and linear regression, and visualize the coverage probability of confidence intervals or Type I & II Errors in hypothesis testing.

Build understanding by experiencing these important concepts step-by-step. For students and teachers of statistics.

The Art of Stat: Concepts app provides access to the following modules:

- Central Limit Theorem for Means
- Central Limit Theorem for Proportions
- Explore Correlation
- Explore Linear Regression
- Explore Coverage
- Errors & Power

CLT: Select from several real population distributions (left and right-skewed or fairly symmetric) and simulate taking a sample from the population. 

Visualize how the sampling distribution builds, step-by-step. Explore the effect on the sampling distribution as you increase the sample size. Overlay the normal distribution. 

Compare the sampling distribution of the mean to the population distribution, both visually and in terms of key statistics.

Explore Correlation/Linear Regression: Create (and delete) points in a scatterplot by tabbing on the screen. Show the regression line or residuals. Simulate scatterplots and guess the correlation coefficient. 

Coverage and Errors: Explore what 95% coverage for a confidence interval for a population mean or proportion implies. 

See the Type I and Type II error and explore how they depend on the sample size and the true parameter value. Find and visualize the power of a hypothesis test.

## Key features

- Central Limit Theorem simulation
- Correlation and linear regression exploration
- Confidence interval coverage visualization
- Type I & II error analysis
- Interactive scatterplot builder
- Step-by-step concept learning

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Central Limit Theorem (Means) | $0.99 | one-time |
| Central Limit Theorem (Props) | $0.99 | one-time |
| Coverage Confidence Intervals | $0.99 | one-time |
| Explore Type I Error & Power | $0.99 | one-time |
| Unlock all Modules | $2.99 | one-time |
| Explore Correlation | $0.99 | one-time |
| Explore Linear Regression | $0.99 | one-time |


## Recent user reviews (2 of 2)

All indexed reviews: https://appshunter.io/ios/app/art-of-stat-concepts/id6444956478/reviews.md

### 5/5 — Great interactive app

*2025-02-07*

Illustrates and computes power and shows what coverage probability means

### 5/5 — Really helpful!

*2023-01-25*

This is a great way for exploring the Central Limit Theorem.

## Frequently asked questions about Art of Stat

### What statistical concepts does Art of Stat: Concepts cover?

Art of Stat: Concepts covers the Central Limit Theorem for means and proportions, correlation, linear regression, confidence interval coverage, and Type I & II errors in hypothesis testing. It aims to build understanding through interactive, step-by-step exploration of these key ideas.

### How does Art of Stat: Concepts help with learning?

The app uses interactive modules where users can simulate sampling distributions, build scatterplots, and visualize error probabilities. This hands-on approach allows for a deeper, experiential understanding of complex statistical principles.

### Is Art of Stat: Concepts suitable for teachers?

Yes, Art of Stat: Concepts is designed for both students and teachers of statistics. It provides a dynamic way to demonstrate and explore statistical concepts in a classroom or self-study setting.

### What devices does Art of Stat: Concepts support?

Art of Stat: Concepts is available on iPhone, iPad, and iPod. It is designed to be accessible on Apple's mobile and tablet platforms.

### How often is Art of Stat: Concepts updated?

The app was last updated on September 8, 2025, with version 1.7.0. This indicates a commitment to ongoing development and improvements.

### What is the age rating for Art of Stat: Concepts?

Art of Stat: Concepts has an age rating of 4+. This suggests it is suitable for a wide audience, including younger learners, due to its educational focus.

### Does Art of Stat: Concepts have ads?

No, Art of Stat: Concepts does not contain advertisements. The app is free to download and use without interruptions from ads.

### What is the user sentiment for Art of Stat: Concepts?

User sentiment appears to be very positive, with an average rating of 5.0 stars from 10 ratings. This indicates a high level of satisfaction among its users.

## Version history (last 5 releases)

### 1.7.0 — 2025-09-08

Now supports tablets and landscape mode

### 1.6.0 — 2024-10-28

Fixed bug in power calculation

### 1.3.0 — 2023-02-24

- Explore Linear Regression
- Explore Correlation
- Tab in scatterplot to add/delete points
- Simulate from real population distributions

### 1.2.0 — 2023-02-05

- Explore Correlation
- Tab in scatterplot to add/delete points
- Simulate from real population distributions

### 1.1.0 — 2023-01-18

New population distributions to simulate from:
- All U.S. born babies (birthweight)
- All US flights in October 2022 (duration, on-time)
- All US Colleges offering Bachelor's degree (acceptance rate, cost, earnings,...)

Explore Coverage of Confidence Interval:
- Slider for confidence coefficient

Errors & Power:
- Slider for true proportion/mean
- Slider for sample size n

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## More apps by Bernhard Klingenberg

- [Art of Stat: Distributions](https://appshunter.io/ios/app/art-of-stat-distributions/id1564877193)
- [Art of Stat: Inference](https://appshunter.io/ios/app/art-of-stat-inference/id1578438712)
- [Art of Stat: Explore Data](https://appshunter.io/ios/app/art-of-stat-explore-data/id1599474757)
- [Art of Stat: Regression](https://appshunter.io/ios/app/art-of-stat-regression/id1613497223)
- [Art of Stat: Resampling](https://appshunter.io/ios/app/art-of-stat-resampling/id6448982230)

All apps by Bernhard Klingenberg: https://appshunter.io/developer/1564877195

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-07-08.*