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    <h2>public pure function variance(x) result(rst)  
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    <p>Computes the sample variance of the values in an array.</p>
<p>The variance computed is the sample variance such that 
<script type="math/tex; mode=display"> s^2 = \frac{\Sigma \left( x_{i} - \bar{x} \right)^2}{n - 1} </script>.</p>


    <h3>Arguments</h3>
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