Alternative Equation Formats

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

MathML

χ 2 = l = 1 L ( r l N P l ) 2 N P l

Math Rendered as SVG

Math as LaTeX Source

\[ \chi ^2 = \sum _{l=1}^{L} \frac{(r_ l-NP_ l)^2}{N P_ l} \]