# Alternative Equation Formats

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

## MathML

$\begin{array}{rlrl}{n}_{i\cdot }& =\sum _{j}{n}_{ij}& & \text{(row totals)}\\ {n}_{\cdot j}& =\sum _{i}{n}_{ij}& & \text{(column totals)}\\ n& =\sum _{i}\sum _{j}{n}_{ij}& & \text{(overall total)}\\ {p}_{ij}& ={n}_{ij}/n& & \text{(cell percentages)}\\ {p}_{i\cdot }& ={n}_{i\cdot }/n& & \text{(row percentages of total)}\\ {p}_{\cdot j}& ={n}_{\cdot j}/n& & \text{(column percentages of total)}\end{array}$

## MathML rendered with MathJax

$\begin{array}{rlrl}{n}_{i\cdot }& =\sum _{j}{n}_{ij}& & \text{(row totals)}\\ {n}_{\cdot j}& =\sum _{i}{n}_{ij}& & \text{(column totals)}\\ n& =\sum _{i}\sum _{j}{n}_{ij}& & \text{(overall total)}\\ {p}_{ij}& ={n}_{ij}/n& & \text{(cell percentages)}\\ {p}_{i\cdot }& ={n}_{i\cdot }/n& & \text{(row percentages of total)}\\ {p}_{\cdot j}& ={n}_{\cdot j}/n& & \text{(column percentages of total)}\end{array}$

## Math as LaTeX Source

\begin{aligned} n_{i \cdot } & = \sum _ j n_{ij} & & \mbox{(row totals)} \\ n_{\cdot j} & = \sum _ i n_{ij} & & \mbox{(column totals)} \\ n & = \sum _ i \sum _ j n_{ij} & & \mbox{(overall total)} \\ p_{ij} & = n_{ij} / n & & \mbox{(cell percentages)} \\ p_{i \cdot } & = n_{i \cdot } / n & & \mbox{(row percentages of total)} \\ p_{\cdot j} & = n_{\cdot j} / n & & \mbox{(column percentages of total)} \end{aligned}