Math Solutions

[Steps Shown] A history professor assigns letter grades according the following scale. Scores are normally distributed with a mean of 66 and a standard deviation

Question: A history professor assigns letter grades according the following scale.  Scores are normally distributed with a mean of 66 and a standard deviation of 12.8.  Find the numerical limits for each letter grade.  Round your answers to the nearest appropriate whole number.

A:  scores in the top 10%

B:  scores below the top 10% and above the bottom 60%

C:  scores below the top 40% and above the bottom 20%

D:  scores below the top 80% and above the bottom 10%

F:   scores in the bottom 10%

Price: $2.99
Solution: The downloadable solution consists of 3 pages
Deliverable: Word Document


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