The following scatterplot shows the relationship between the left and right forearm lengths (cm) for 55 college students along with the regression line, where y =left forearm length x = right forearm length 31- 30 - 29 - E 28 - 27 - 馬 26. S 26. 22- Right arm (cm) 7. One of the four choices is the equation for the regression line in the plot. The regression equation is A. ỹ= 1.22 - 0.95 X B. ŷ= 1.22 +0.95 X C. & = 1.22 + 0.95 y D. £= 1.22 0.95 y One of the four choices is the value of the correlation for this situation. The correlation is A. -o.88 B. 0.00 C. o.88 D. 1.00 The proportion of total variation explained by x, r² , is closest to A. 78.3% B. 0.0% C. -78.3% D. 100.0%
The following scatterplot shows the relationship between the left and right forearm lengths (cm) for 55 college students along with the regression line, where y =left forearm length x = right forearm length 31- 30 - 29 - E 28 - 27 - 馬 26. S 26. 22- Right arm (cm) 7. One of the four choices is the equation for the regression line in the plot. The regression equation is A. ỹ= 1.22 - 0.95 X B. ŷ= 1.22 +0.95 X C. & = 1.22 + 0.95 y D. £= 1.22 0.95 y One of the four choices is the value of the correlation for this situation. The correlation is A. -o.88 B. 0.00 C. o.88 D. 1.00 The proportion of total variation explained by x, r² , is closest to A. 78.3% B. 0.0% C. -78.3% D. 100.0%
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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Transcribed Image Text:The following scatterplot shows the relationship between the left and right forearm lengths (cm)
for 55 college students along with the regression line, where y =left forearm length x = right forearm length
31-
30 -
29 -
E 28 -
27 -
馬
26
S 26.
22-
Right arm (cm)
7. One of the four choices is the equation for the regression line in the plot. The regression equation is
A. ý= 1.22 - 0.95 X
B. ý= 1.22 +0.95 x
C. & = 1.22 + 0.95 y
D. £= 1.22 0.95 y
One of the four choices is the value of the correlation for this situation. The correlation is
A. -0.88
B. 0.00
C. 0.88
D. 1.00
The proportion of total variation explained by x, r² , is closest to
A. 78.3%
B. 0.0%
C. -78.3%
D. 100.0%
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