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標準偏差計算機
数値リストの平均・分散・件数とともに母集団・標本の標準偏差を比較します。
ツール操作エリア
アカウント不要The calculation runs locally using browser APIs; it does not require uploading measurements. Optional analytics and advertising have separate consent and privacy disclosures. Avoid sensitive inputs.
- Population standard deviation
- 2
- Variance
- 4
- Mean
- 5
- Count
- 8
Population variance divides by n; sample variance divides by n-1. Uses Welford's floating-point algorithm and rejects non-finite results. Up to 10,000 values; extreme magnitudes may exceed numeric range.