The data in the chart shows the maximum and corresponding resting heart rate of a healthy 20-year old man. Fit a regression line to the date. Then find the coefficient of correlation. Finally, use the regression line to predict the maximum heart rate for a resting heart rate of 41, 56, and 77. Resting 50 60 70 80 90 Maximum 169 172 172 176 176 A) Which is the correct regression line? a) y = 0.18x - 160.4 b) y = 0.18x + 160.4 c) y = 160.4 d) y = 160.4x + 0.18 What is the coefficient of correlation rounded to 3 decimal places? B) What is the predicted maximum heart rate for a resting heart rate of 41 (round to nearest integer)? What is the predicted maximum heart rate for a resting heart rate of 56 (round to nearest integer)? What is the predicted maximum heart rate for a resting heart rate of 77 (round to nearest integer)?

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The data in the chart shows the maximum and corresponding resting heart rate of a healthy 20-year old man. Fit a regression line to the date. Then find the coefficient of correlation. Finally, use the regression line to predict the maximum heart rate for a resting heart rate of 41, 56, and 77.

Resting 50 60 70 80 90
Maximum 169 172 172 176 176


A) Which is the correct regression line?
a) y = 0.18x - 160.4
b) y = 0.18x + 160.4
c) y = 160.4
d) y = 160.4x + 0.18

What is the coefficient of correlation rounded to 3 decimal places?

B) What is the predicted maximum heart rate for a resting heart rate of 41 (round to nearest integer)?

What is the predicted maximum heart rate for a resting heart rate of 56 (round to nearest integer)?

What is the predicted maximum heart rate for a resting heart rate of 77 (round to nearest integer)?

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