Maximum Heart Rate. A person who is exercising should not exceed his or her maximum heart...

Maximum Heart Rate. A person who is exercising should not exceed his or her maximum heart rate, which is determined on the basis of that person’s sex, age, and resting heart rate. The table below relates resting heart rate and maximum heart rate for a 20-year-old man.

Source: American Heart Association

a) Use a graphing calculator to model the data with a linear function.

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b) Estimate the maximum heart rate if the resting heart rate is 40, 65, 76, and 84.

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c) What is the correlation coefficient? How confident are you about using the regression line to estimate function values?