Basics of Statistics

Binary Tuts

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About this app

Basics of Statistics is a short, friendly course for beginners. It explains the core ideas of statistics in plain language, with original drawings, worked examples and practice questions.

What's inside
• Data and sampling: populations and samples, types of data, sampling methods, bias, experiments and observational studies
• Graphs of data: frequency tables, histograms, stem-and-leaf plots, ogives and the shape of a distribution
• Centre and spread: mean, median and mode, quartiles and box plots, standard deviation, z-scores and the empirical rule
• Probability: the basic rules, conditional probability, Bayes' theorem, permutations and combinations
• The normal distribution: continuous distributions, the normal curve, the standard normal and the normal approximation
• Correlation and regression: scatterplots, the correlation coefficient, the least-squares line and residuals

Made for studying
• Clear explanations with every term defined
• Worked examples with full steps; all numbers were computed and checked
• Practice questions with tap-to-reveal answers
• Search across all topics
• Dark mode
• Works offline, with no account needed
• Available in 8 languages: English, Español, Português, Français, Deutsch, العربية, हिन्दी and Bahasa Indonesia

For school and college students starting statistics, and for anyone who wants to understand data. This app is an independent study aid.

What’s new

Completely rewritten: a beginner's course in statistics — data and sampling, graphs, mean, median and standard deviation, box plots, basic probability, the normal distribution, and correlation and regression — with drawings, worked examples and practice questions. Now in 8 languages: English, Spanish, Portuguese, French, German, Arabic, Hindi and Indonesian.