Data & Statistics Mission
Collect, display, and analyze data — from picture graphs and bar charts to distributions, regression, and hypothesis testing.
7 activities · Work through in order for a complete lesson arc
Picture Graphs, Bar Graphs & Line Plots Builder
Enter data and build picture graphs, bar graphs, and line plots. Auto-generated questions test reading and comparing data. Perfect for elementary data literacy
Spinners, Dice & Probability for Kids
Spin a colorful spinner or roll a die, track your results, and explore what is more likely or less likely to happen. Grades 3-5.
Mean, Median & Mode Explorer
Enter a dataset to see mean, median, and mode on an interactive number line with a balance-point fulcrum, box plot, and step-by-step calculations.
Descriptive Statistics Calculator
Compute mean, median, mode, standard deviation, and more. Visualize data with interactive box plots and histograms.
Linear Regression Calculator
Find the best-fit line for paired data. See slope, intercept, correlation, R-squared, scatter plot, and residual analysis.
Normal Distribution & Z-Score Explorer
Interactive bell curve with shaded probability regions. Convert between raw scores and Z-scores with numerical integration.
Hypothesis Testing Calculator
Run z-tests, t-tests, two-sample t-tests, and chi-square goodness-of-fit tests. See test statistics, p-values, critical values, and step-by-step breakdowns.
Capstone activity — test a claim with real data.