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Variance
Variance is the arithmetic mean of the squared deviations from the arithmetic mean.
$$\sigma^2=\frac{1}{n}\sum_{i=1}^{n}(x_i-\bar{x})^2$$
Usage
- Fundamental measure of dispersion used in JEE statistics.
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Variance
Variance is the arithmetic mean of the squared deviations from the arithmetic mean.
$$\sigma^2=\frac{1}{n}\sum_{i=1}^{n}(x_i-\bar{x})^2$$
Usage
- Fundamental measure of dispersion used in JEE statistics.
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