Question # 1
The
data below gives the marks obtained by 10 pupils taking Maths and Physics tests
|
A |
B |
C |
D |
E |
F |
G |
H |
I |
J |
Maths Marks |
20 |
23 |
8 |
29 |
14 |
11 |
11 |
20 |
14 |
14 |
Physics Marks |
30 |
35 |
21 |
33 |
33 |
26 |
22 |
31 |
33 |
36 |
Calculate the coefficient of correlation.
Question # 2
By using
the regression line y^ = 0.7 + 2.9x and the below data, find the squares-of-residuals.
x |
y |
-1 |
0 |
0 |
2 |
1 |
4 |
2 |
5 |
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