Alternative Equation Formats

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

MathML

P_{i r} = \sum_{j = 1}^{r} p_{i j}

P_{i r} = \sum_{j = 1}^{r} p_{i j}

$P_{ir} = \sum _{j=1}^ r p_{ij}$