A3. Draw a frequency histogram for the data shown in Exercise
A1. Now superimpose a frequency polygon on the histogram. Using a ruler, measure the height and width of your graphs: Is the height about two thirds of the width?
A4. Describe the shape of the frequency distribution drawn in Exercise A3 in terms of modality and skewness. Is the number of falls normally distributed?
A5. If you wanted to display information on patients’ age using the data in Table 5, would you construct a histogram, bar graph, frequency polygon, or pie chart? Defend your selection, and then construct such a graph.
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