1<?xml version='1.0'?> 2<!DOCTYPE html PUBLIC '-//W3C//DTD XHTML 1.1 plus MathML 2.0//EN' 3 'http://www.w3.org/TR/MathML2/dtd/xhtml-math11-f.dtd' 4 [<!ENTITY mathml 'http://www.w3.org/1998/Math/MathML'>]> 5<html xmlns='http://www.w3.org/1999/xhtml'> 6<head><title>skew_normal_variance</title> 7<!-- MathML created with MathCast Equation Editor version 0.9 --> 8</head> 9<body> 10<math xmlns="http://www.w3.org/1998/Math/MathML" display="block"> 11 <mrow> 12 <msup> 13 <mi>ω</mi> 14 <mn>2</mn> 15 </msup> 16 <mfenced> 17 <mrow> 18 <mn>1</mn> 19 <mo>−</mo> 20 <mn>2</mn> 21 <mfrac> 22 <msup> 23 <mi>δ</mi> 24 <mn>2</mn> 25 </msup> 26 <mi>π</mi> 27 </mfrac> 28 </mrow> 29 </mfenced> 30 </mrow> 31</math> 32</body> 33</html>