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Standard Deviation
Standard deviation is the positive square root of variance:
$$\sigma=\sqrt{\frac{1}{n}\sum_{i=1}^{n}(x_i-\bar{x})^2}$$
Usage
- Measures the typical spread of observations around the mean.
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Standard Deviation
Standard deviation is the positive square root of variance:
$$\sigma=\sqrt{\frac{1}{n}\sum_{i=1}^{n}(x_i-\bar{x})^2}$$
Usage
- Measures the typical spread of observations around the mean.
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