Given the bivariate data: 3 5 7 5 3 2 1 a. Draw a scatter diagram for the data. b. Find n,,, and . c. Find a, the slope of the least-square line, and b, the y-intercept of the least-square line.

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c) Find the equation of the least - square line.
d) Use the equation from part c to predict the maximum exercise heart rate for a person
who is 72.
e) Is the procedure in part d an example of interpolation or extrapolation?
Given the bivariate data:
2
3
5
y
7
5
3
2
1
a. Draw a scatter diagram for the data.
b. Find n,, and.
c. Find a, the slope of the least-square line, and b, the y-intercept of the least-square line.
d. Draw the least-square line on the scatter diagram from part a.
e. Is the point (, ) on the least-square line?
f. Use the equation of the least-square line to predict the value of y when x = 3.4.
g. Find the nearest hundredth, the linear correlation coefficient.
Transcribed Image Text:c) Find the equation of the least - square line. d) Use the equation from part c to predict the maximum exercise heart rate for a person who is 72. e) Is the procedure in part d an example of interpolation or extrapolation? Given the bivariate data: 2 3 5 y 7 5 3 2 1 a. Draw a scatter diagram for the data. b. Find n,, and. c. Find a, the slope of the least-square line, and b, the y-intercept of the least-square line. d. Draw the least-square line on the scatter diagram from part a. e. Is the point (, ) on the least-square line? f. Use the equation of the least-square line to predict the value of y when x = 3.4. g. Find the nearest hundredth, the linear correlation coefficient.
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