Mathematics, 09.07.2019 18:30 aclark512
X7 4 5 3 2 10 y 8 -7 4 5 -2 10 round to 3 decimal places, what is the value of r for this data set? a. 0.7061 b. 0.8121 c. 0.8723 d. 0.6119
Answers: 1
![r=\frac{n\sum x y- \sum x \sum y}{\sqrt{[n\sum x^{2}-(\sum x)^2][n\sum y^{2}-(\sum y)^2]}}](/tpl/images/0070/3672/1ddba.png)
![=\frac{6\times 159- 31 \times 18}{\sqrt{[6 \times 203-(31)^2][6 \times 258-(18)^2]}}](/tpl/images/0070/3672/930ed.png)
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X7 4 5 3 2 10 y 8 -7 4 5 -2 10 round to 3 decimal places, what is the value of r for this data set?...
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