Concept explainers
Voluntary grade inflation. The dean felt that a professor had graded too harshly, so she wrote a questionnaire to all students asking if they would like their grades reevaluated. Of those students who received a grade of A, how many would you think responded to the dean?
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The Heart of Mathematics: An Invitation to Effective Thinking, WileyPLUS NextGen Card with Loose-leaf Set Single Semester: An Invitation to Effective Thinking (Key Curriculum Press)
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