Statistics practice problems
Describing data, the normal distribution, confidence intervals, correlation and regression. Each problem below has a full solution whose steps and answer come from the exact math engine.
Descriptive Statistics
Mean, median, mode, variance and standard deviation.
Easy
Find the mean, median and mode of 1, 2, 3, 4, 4.
Three measures of center for one small data set.
Medium
Find the population standard deviation of 2, 4, 4, 4, 5, 5, 7, 9.
A data set whose mean is 5 and whose variance comes out to a perfect square.
Practise with: Mean Median Mode Calculator, Standard Deviation Calculator
More practice
- Statistics Calculators: every calculator for this subject.
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- Step-by-step solver for your own problems, with hints and answer checking.