实用工具可以使用
标准差计算器
比较数值列表的总体标准差和样本标准差，以及方差、均值和数量。
交互式工具区
无需注册账号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.