Alternative Equation Formats

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

MathML

s p = ( ( n 1 1 ) s 1 2 + ( n 2 1 ) s 2 2 n 1 + n 2 2 ) 1 2

Math Rendered as SVG

Math as LaTeX Source

\[ s_ p = \left( \frac{(n_1-1)s_1^2+(n_2-1)s_2^2}{n_1+n_2-2} \right)^\frac {1}{2} \]