The numbers of automobile accidents per 1000 licensed drivers per year are shown in Table 16 for various age groups.

Let r be the automobile accident rate (number of accidents per 1000 licensed drivers per year) for licensed drivers at age a years.
a. Construct a scatterplot.
b. Which age group shown in Table 16 has the lowest accident rate?
c. Which age group shown in Table 16 has the highest accident rate?
d. Between what two consecutive drivers€™ ages does there seem to be the greatest change in the accident rate? Explain why we can€™t be sure this is true, because of the way the data are described in Table 16.
e. Many states put limits on teenage driving. For example, some states do not allow 16-year-old drivers to drive at night. Some states require parental supervision at all times. Why do you think these regulations were adopted?

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Table 16 Automobile Accidents Age Used to Represent Age Accident Rate (number of accidents per 1000 licensed drivers per year) Age Group years) 16 17 18 19 20-29 30-39 40-49 50-59 Group lyears) 190.3 163.2 142.9 1228 914 54.7 43.9 36.4 313 32.1 16 17 18 19 24.5 44.5 over 69 75