Statistics
Normal distribution explorer
Change the mean and standard deviation to understand location, spread and probability.
Interactive statistics demos
Explore statistics visually through distributions, regression and uncertainty.
These interactive statistics demos help students understand important concepts such as normal distributions, regression lines, confidence intervals, sampling variation and uncertainty. Each demo is designed to connect formulas with visual intuition and practical interpretation.
← Learning Hub
Interactive statistical calculators and visual demos.
Use live calculators and visual explanations to understand formulas, uncertainty, models and interpretation.
Confidence interval calculator
Calculate a confidence interval for a mean.
Enter raw data or summary statistics, choose a z or t interval, and see the interval, graph and interpretation update instantly.
Input type
Interval type
More demos coming
Build intuition before memorising formulas.
Regression
Regression line playground
Move points and see how slope, residuals and fitted lines respond.
Machine Learning
Prediction threshold lab
Adjust a classification threshold and interpret sensitivity, specificity and false positives.