<p>What is a quartile? Like what percentage is that?</p>
<p>That's dividing the school into quarters (top 25%, 2nd 25%, 3rd 25% & bottom 25%). Some other schools divide by declines (10%).</p>
<p>Isn't 10% divisions deciles?</p>
<p>yeah the top 10% is the top decile</p>