Example 2

In order to constantly improve instruction, Mr. Hoople keeps careful records on how his students perform on exams. The histogram below displays the grades of 40 students on a recent United States history test. The table next to it summarizes some of the characteristics of the data. Use the properties of a normal distribution to determine if a normal distribution is an appropriate model for the grades on this test.


Walch Education

Material Type
normal-distribution  normal  curve  normal-curve  symmetry  distribution  outlier  outliers  histogram 
Target Group (Age)
15 – 18
English (United States)
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