For a set of six data pairs for the variable x (profit) and y (sales) the following values have been found.
Sx
=
2
Sy
15
Sx2
30
Sy2
130
Sxy
14
What is the correlation coefficient?
The correct answer is: 0.17 (to 2 dp)
r
0.172778
0.17 (to 2 dec places
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