Statistics and analysis
Statistics and analysis: 7 free online tools. Compare tasks, read instructions and choose a tool. No account required.
Summarize numeric data and explore supported statistical calculations. Check that your dataset uses the expected format and that missing values are handled as intended. Review the method and assumptions before interpreting a summary.
Choose a tool 7
Descriptive statistics calculator
Report median, quantiles, spread and a histogram with conventions.
Statistics and analysisLinear regression calculator
Fit paired data and show residuals and correlation.
Statistics and analysisConfidence interval calculator
Estimate intervals with explicit distribution and sample assumptions.
Statistics and analysisSample size calculator
Plan estimation precision with explicit population and confidence inputs.
Statistics and analysisProbability distribution explorer
Plot common distributions and selected tail probabilities.
Statistics and analysisOutlier detector
Compare IQR and z-score flags without automatically deleting records.
Statistics and analysisA/B test calculator
Compare two proportions with uncertainty and stated test assumptions.
Statistics and analysis