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प्रश्न
If v is the variance and σ is the standard deviation, then
विकल्प
\[v = \frac{1}{\sigma^2}\]
\[v = \frac{1}{\sigma}\]
v = σ2
v2 = σ
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उत्तर
v = σ2
The variance is the square of the standard deviation.
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