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Statistics

Descriptive statistics, probability, distributions and tests: the required course in business, psychology and the social sciences. With new problems every day.

Statistics trainerNew problems every day, no sign-up

Calculators with workings

Confidence interval calculator Binomial distribution calculator Mean, variance and median calculator

Practice exams

Statistics practice examStatistics practice exam: measures of location and spread, probability, distributions, confidence intervals, tests and regression. Answer online or print, with worked answers.

Topics

Mean, median and mode Variance and standard deviation Combinatorics and probability Expected value and variance Binomial distribution Normal distribution Confidence interval Hypothesis test Regression and correlation Conditional probability and Bayes Poisson distribution Chi-square test of independence

How to study for the exam

How to prepare for a statistics examMany students fail statistics not on understanding but on small, recurring mistakes. Here is how to practise them away.

Other subjects

Accounting Economics Calculus Linear algebra General chemistry Organic chemistry