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The scatter plot below summarises the relationship between age of a driver and how far they can see. The mean age is 51 years with a standard deviation 22 years. The mean distance that drivers in the sample can see is 423 meters with a standard deviation of 82 metres. The R-squared for the plot is 64.20%. Calculate by hand:

The scatter plot below summarises the relationship between age of a driver and how far they can see. The mean age is 51 years with a standard deviation 22 years. The mean distance that drivers in the sample can see is 423 meters with a standard deviation of 82 metres. The R-squared for the plot is 64.20%. Calculate by hand:

MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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The scatter plot below summarises the relationship between age of a driver and how far they
can see. The mean age is 51 years with a standard deviation 22 years. The mean distance that drivers in
the sample can see is 423 meters with a standard deviation of 82 metres. The R-squared for the plot is
64.20%. Calculate by hand:

 

(a) correlation coefficient between age of drivers and the distance they can see

(b)  the equation of the regression line

 

Distance 600 550 500 450 400 350 300 10 20 Scatterplot of Distance vs Age 30 40 50 Age 60 70 80 90
Transcribed Image Text:Distance 600 550 500 450 400 350 300 10 20 Scatterplot of Distance vs Age 30 40 50 Age 60 70 80 90
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