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Variation in final grades for operations research course

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The final grades given by two professors in introduction to operations research course have been carefully examined. The
students in the first professor's class had a grade point average of 3.0 and a standard deviation of 0.2. Those in the second
professor's class had grade points with an average of 3.0 and a standard deviation of 1.0.

If you had a choice, which professor would you take for this course and why? Give a very detailed answer.

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Solution Summary

In this solution, we asses the variation in final grades for an operations research course

Solution Preview

First, let's interpret what std. dev. and average mean.

Average means that you sum up everyone's mark, and divide by the number of students you've just added.

But average doesn't tell you very much, because let's say that the average is 2.0, you cannot deduce what everyone got (for example, in a class of 2 students, one 4.0 and one 0.0 OR ...

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