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  <title id="t">How Standard Deviation Changes the Curve</title><desc id="d">Two bell curves sharing a mean: a tall narrow curve for a small standard deviation and a short wide curve for a large standard deviation.</desc>
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  <text class="ttl" x="32" y="42">How Standard Deviation Changes the Curve</text>
  <text class="sub" x="32" y="64">Two classes, same average, very different spread</text>
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(μ)</text><line x1="66" y1="380" x2="98" y2="380" class="curve"/><text class="lbl" x="106" y="384">Small SD</text><text class="mut" x="180" y="384">— tightly clustered; small leads jump you up</text><line x1="66" y1="404" x2="98" y2="404" class="curve2"/><text class="lbl" x="106" y="408">Large SD</text><text class="mut" x="180" y="408">— spread out; the same lead earns a lower percentile</text>
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