Question: The following histogram was created using the variable score in the data file ECONMATH. Thirty bins were used to create the histogram, and the height

The following histogram was created using the variable score in the data file ECONMATH. Thirty bins were used to create the histogram, and the height of each cell is the proportion of observations falling within the corresponding interval. The best-fitting normal distribution—that is, using the sample mean and sample standard deviation—has been superimposed on the histogram.

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