Alternative Equation Formats

The equation on this page is available in multiple formats. Depending on your browser, some formats might not render correctly.

MathML

v a r (x_{i}) = \frac{σ^{2}}{w_{i}}

v a r (x_{i}) = \frac{σ^{2}}{w_{i}}

$var(x_ i) = \frac{\sigma ^2}{w_ i}$