1.38 Table below gives the age and gender of patients participating in a medical study at the University of South Alabama.

a Construct a histogram for the age of patients, disregarding their gender. Describe the distribution.
b Does the empirical rule work well for these data?
c Suppose all outliers are removed from the data. Does the empirical rule now work better? Why or why not?
d Construct histograms and boxplots for the age of patients by gender. Compare the age distributions of male and female patients based on information in these plots.

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