Alternative Equation Formats

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MathML

σ 2 = 4 k 2 [ N p ( 1 p ) + Φ ( d ) ( 1 Φ ( d ) ) 2 ( N p ( 1 p ) ) 1 2 ϕ ( d ) ]

Math Rendered as SVG

Math as LaTeX Source

\[ \sigma ^2 = 4k^2 \left[Np(1-p) + \Phi (d)\left( 1-\Phi (d) \right) - 2 \left( Np(1-p) \right)^\frac {1}{2} \phi (d) \right] \]