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Fixed small typo in help file, bug 5243

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gustav_delius
2006-04-18 23:15:11 +00:00
parent c1f52a2f81
commit d1873436d2
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lang/en_utf8/help/quiz/itemanalysis.html
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@@ -47,7 +47,7 @@ The discrimination coefficient is a correlation coefficient between scores at th
<br/>
DC = Sum(xy)/ (N * s<sub>x</sub> * s<sub>y</sub>)
<br/>
where Sun(xy) is the sum of the products of deviations for item scores and overall quiz scores, <br>
where Sum(xy) is the sum of the products of deviations for item scores and overall quiz scores, <br>
N is the number of responses given to this question<br/>
s<sub>x</sub> is the standard deviation of fractional scores for this question and, <br/>
s<sub>y</sub> is the standard deviation of scores at the quiz as a whole.