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标准差计算器

计算标准差

在浏览器中运行 · 无需上传

此工具及本页说明目前仍为英文。功能完全相同：一切都在你的浏览器中运行。

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  • 任何内容都不会离开你的设备
  • 服务器不限制文件大小
  • 无需注册，无水印
  • 免费

How to calculate standard deviation

  1. Type or paste your numbers.
  2. Read the sample standard deviation, and the population one below it.
  3. Copy the results if you need them.

The formula

Find the mean, square each value's distance from it, add them up, divide by n − 1 (sample) or n (population), and take the square root. For 2, 4, 4, 4, 5, 5, 7, 9 the population standard deviation is exactly 2.

常见问题

Is anything sent anywhere?

No. The calculation happens in your browser, and your data never leaves your device.