Recently, the annual number of driver deaths per \(100,000\) for the selected age groups was as follows:

a. For each age group, pick the midpoint of the interval for the \(x\) value. (For the \(75+\) group, use \(80\).)

b. Using “ages” as the independent variable and “Number of driver deaths per \(100,000\)” as the dependent variable,

make a scatter plot of the data.

c. Calculate the least squares (best–fit) line. Put the equation in the form of: \(\hat{y}=a+bx\)

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