StatsPals: Learn Statistics

Statistics doesn't have to be scary. StatsPals breaks it into small lessons you can finish while your coffee is still hot. Read one idea, answer a few questions about it, move on. That's the whole loop. Three courses, start to finish: • Elementary Statistics. What data actually is, variables and levels of measurement, summarising data, center and spread. • Statistical Methods. Probability, distributions, sampling distributions, confidence intervals, and hypothesis testing (z-tests, t-tests, proportions). • Design of Survey Samples. Why we sample, sampling frames, simple random, systematic, stratified and cluster sampling, weighting, bias, and total survey error. Lessons are short on purpose, and older ideas keep turning up in later questions, so they stick around instead of fading out. Questions come in three kinds: multiple choice, typed answers, and numeric input. Get one wrong and you get a written explanation, not just a red X. What's in the app: • 100+ short lessons across three courses • 875 practice questions, every one with an explanation • Fully offline. No account, no sign-up. • No ads and no tracking • 14 languages: English, Spanish, French, Arabic, Chinese, Japanese, Korean, Hindi, Persian, Thai, Vietnamese, Urdu, Dutch, Indonesian • Light and dark themes Taking a stats class? Brushing up for work? Just curious what a p-value is? Same app, your pace.