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The term variance is used to denote:
EXPLANATION
Rainfall-Runoff Modeling, Unit Hydrographs, B
- Variance Definition: In agricultural statistics and biometrics, variance (denoted by $\sigma^2$ for population or $s^2$ for sample) is the mean of the squared deviations of individual observations from their arithmetic mean.
- Relationship with Standard Deviation: Standard deviation is the positive square root of variance ($\text{SD} = \sqrt{\text{Variance}}$), which means variance is mathematically the square of the standard deviation ($\text{Variance} = \text{SD}^2$). (Correct answer: Option 2)
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