A Zumba instructor remembers the data given in the following table, which shows the recommended maximum exercise heart rates for individuals of the given ages.   Age (x years) 20 40 60 Maximum heart rate 170 153 136 (y beats per minute)         a. Find the linear correlation coefficient for the data. - already answered from the previous question posted. b. What is the significance of the value found in part a? - already answered from the previous question posted. c. Find the equation of the least-squares line. - already answered from the previous question posted.   d. Use the equation from part c to predict the maximum exercise heart rate for a person who is 72. - not yet answered e. Is the procedure in part d an example of interpolation or extrapolation? - not yet answered

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter4: Equations Of Linear Functions
Section4.5: Correlation And Causation
Problem 15PPS
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A Zumba instructor remembers the data given in the following table, which shows the recommended maximum exercise heart rates for individuals of the given ages.

 

Age (x years) 20 40 60
Maximum heart rate 170 153 136
(y beats per minute)      

 

a. Find the linear correlation coefficient for the data. - already answered from the previous question posted.

b. What is the significance of the value found in part a? - already answered from the previous question posted.

c. Find the equation of the least-squares line. - already answered from the previous question posted.

 

d. Use the equation from part c to predict the maximum exercise heart rate for a person who is 72. - not yet answered

e. Is the procedure in part d an example of interpolation or extrapolation? - not yet answered

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