Statistics and analysis
Statistics and analysis：7 款免费工具。比较任务、阅读说明并选择工具。无需账户。
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.
选择工具 7
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Descriptive statistics calculator
Report median, quantiles, spread and a histogram with conventions.
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Linear regression calculator
Fit paired data and show residuals and correlation.
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Confidence interval calculator
Estimate intervals with explicit distribution and sample assumptions.
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Sample size calculator
Plan estimation precision with explicit population and confidence inputs.
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Probability distribution explorer
Plot common distributions and selected tail probabilities.
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Outlier detector
Compare IQR and z-score flags without automatically deleting records.
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A/B test calculator
Compare two proportions with uncertainty and stated test assumptions.
Statistics and analysis