libs/math/doc/sf_and_dist/equations/chi_squ_ref1.mml

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   2   <mrow>
   3     <mi>Q</mi>
   4     <mspace width="1em"/>
   5     <mo>=</mo>
   6     <mspace width="1em"/>
   7     <munderover>
   8       <mo>&#x2211;</mo>
   9       <mrow>
  10         <mi>i</mi>
  11         <mo>=</mo>
  12         <mn>1</mn>
  13       </mrow>
  14       <mi>&#x03BD;</mi>
  15     </munderover>
  16     <msup>
  17       <mfenced>
  18         <mrow>
  19           <mfrac>
  20             <mrow>
  21               <msub>
  22                 <mi>&#x03C7;</mi>
  23                 <mi>i</mi>
  24               </msub>
  25               <mo>&#x2212;</mo>
  26               <msub>
  27                 <mi>&#x03BD;</mi>
  28                 <mi>i</mi>
  29               </msub>
  30             </mrow>
  31             <mrow>
  32               <msub>
  33                 <mi>&#x03C3;</mi>
  34                 <mi>i</mi>
  35               </msub>
  36             </mrow>
  37           </mfrac>
  38         </mrow>
  39       </mfenced>
  40       <mn>2</mn>
  41     </msup>
  42   </mrow>
  43 </math>
  44