Question

If v is the variance and σ is the standard deviation, then
(a) $v=\frac{1}{{\mathrm{\sigma }}^2}$

(b) $v=\frac{1}{\mathrm{\sigma }}$

(c) v = σ²

(d) v² = σ

Answer 1

$\left(\mathrm{c}\right)v={\sigma }^2$

The variance is the square of the standard deviation.