<?xml version="1.0" encoding='utf-8'?>
<!DOCTYPE wml PUBLIC "-//WAPFORUM//DTD WML 1.1//EN" "http://www.wapforum.org/DTD/wml_1.1.xml">
<wml>
<card id="card1" title="Mean squared error - Page 1 - Wikipedia">
<p>
<a accesskey="3" href="page.php?w=mean_squared_error&amp;p=2">3.Next</a>
</p>
<p>In <a href="page.php?w=statistics">statistics</a>, the <b>mean squared error</b> (<b>MSE</b>) or <b>mean squared deviation</b> (<b>MSD</b>) of an <a href="page.php?w=estimator">estimator</a> (of a procedure for estimating an unobserved quantity) measures the <a href="page.php?w=expected_value">average</a> of the squares of the <a href="page.php?w=Error_%28statistics%29">errors</a>--that is, the average squared difference between the estimated values and the <a href="page.php?w=true_value">true value</a>. MSE is a <a href="page.php?w=risk_function">risk function</a>,</p><p>
<a accesskey="3" href="page.php?w=mean_squared_error&amp;p=2">3.Next</a>
</p>

<do type="prev" label="Search">
        <go href="search.wml"/>
</do>

</card>
</wml>
