Alternative Equation Formats

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MathML

T = \sum_{i = 1}^{R} n_{i 1} (R_{i} - \bar{R}) / \sqrt{p_{\cdot 1} (1 - p_{\cdot 1}) s^{2}}

MathML rendered with MathJax

T = \sum_{i = 1}^{R} n_{i 1} (R_{i} - \bar{R}) / \sqrt{p_{\cdot 1} (1 - p_{\cdot 1}) s^{2}}

Math as LaTeX Source

\[ T = \sum _{i=1}^ R n_{i1} (R_{i} - \bar{R}) ~ / ~ \sqrt { p_{\cdot 1} ~ ( 1 - p_{\cdot 1} ) ~ s^2 } \]