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Some work on help.
\label{numerical_wrong_answers}
When switched into exam (``bubble sheet'') mode,
LON-CAPA usually create wrong answers automatically.
To specify wrong answers yourself, you need to provide an array of incorrect
values to the <numericalresponse> throught the 'incorrect' attribute.
You need to provide at least as many incorrects as 1 less than the
number of bubbles on the exam. You can provide more if you want to.
In Edit mode there is an 'Incorrect Answers:' field you can
fill in.
Minimal example problem:
\begin{verbatim}
<problem>
<script type="loncapa/perl">
$answer=1;
@incorrects=(2,3,4,5,6,7,8);
</script>
<startoutext />
Correct answer is 1. <br />
<endouttext />
<numericalresponse answer="$answer" incorrect="@incorrects">
<textline />
</numericalresponse>
</problem>
\end{verbatim}
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