I am a little confused on the quiz feedback. As you can see this question at the time I copied it, had 19 respondents. There are 3 parts. For these parts there are a total of 19*3=57 possible responses. There are 5 incorrect responses. The percent incorrect is 5/57 = 8%. Yet the feedback to me in this page and on the report in general is that there are 21% incorrect. This is misleading. The five incorrect responses are being counted against only 19 possible rather than 57 possible.
The issue is exacerbated in problem 2. As you can see the feedback is that there are 53% incorrect responses. Eek how bad are the students doing? Well not that bad... There are only 11 incorrect responses out of 54 possible.
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