Solution:
X | Y | XY | X^2 | Y^2 |
3 | 2 | 6 | 9 | 4 |
5 | 3 | 15 | 25 | 9 |
2 | 2.5 | 5 | 4 | 6.25 |
7 | 4 | 28 | 49 | 16 |
6 | 3.5 | 21 | 36 | 12.25 |
n | 5 |
sum(XY) | 75.00 |
sum(X) | 23.00 |
sum(Y) | 15.00 |
sum(X^2) | 123.00 |
sum(Y^2) | 47.50 |
Numerator | 30.00 |
Denominator | 32.79 |
r | 0.9150 |
r square | 0.8372 |
Xbar(mean) | 4.6000 |
Ybar(mean) | 3.0000 |
SD(X) | 1.8547 |
SD(Y) | 0.7071 |
b | 0.3488 |
a | 1.3953 |
The correlation r = 0.915
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