SOLUTION: Sum X squared=
X 2 4 1 5 3
Y 15 25 10 40 30
r =
The r vale indicates:
a. moderately weak negative correlation between x and y
b. moderately strong negative correlation
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-> SOLUTION: Sum X squared=
X 2 4 1 5 3
Y 15 25 10 40 30
r =
The r vale indicates:
a. moderately weak negative correlation between x and y
b. moderately strong negative correlation
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Question 316239: Sum X squared=
X 2 4 1 5 3
Y 15 25 10 40 30
r =
The r vale indicates:
a. moderately weak negative correlation between x and y
b. moderately strong negative correlation between x and y
c. weak positive correlation between x and y.
d. strong coorelation between x and y. Answer by Fombitz(32388) (Show Source):
You can put this solution on YOUR website!
From graphing the points you see that there is a pretty good linear correlation.
d) is the correct answer.
SSXX=10
SSYY=570
SSXY=70
b=SSXY/SSXX=7
b'=SSXY/SSYY=0.122
r^2=b*b'=0.86
a=3
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