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Mth163
Your 'question form' report has been received. Scroll down through the document to see any comments I might have inserted, and my final comment at the end.
** Question Form_labelMessages **
Q assign 02 ex 2
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Determine from your model the percent of classes reviewed to achieve grades of 3.0 and 4.0.
My model predicted using the quadratic formula the percent of the class that would that achieve grades of 3.0 would be 87.484, which doesn't make sense. I couldn't come up with an answer 4.0 grades.
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That does make sense. 87% review achieves a grade of 3.0.
It is also possible that it's a tough course and a 4.0 is not possible.
Your model gives results consistent with those obtained by most students who do the problem correctly.
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I still see the that my answer of 87% at 3.0 grade being inconsistant compared to the data and predictions from the quadratic equation. The data shows 70% of the class received a 3.09165 and the prediction was 3.08456. Also, 80% of the class received a 3.236068 while the prediction was 3.19116. I would think that 70% would be more reasonable. What am I failing to see or observe???
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Excellent question.
In your original submission I don't think you specified which data points were used as the basis for your model.
If you resubmit this and add that information I can clarify how the apparent anomaly arose. Briefly, the points you choose have a significant effect on the quadratic model, which might or might not end as a good fit to the rest of the data points.
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