Scatter diagram, coefficient linear correlation, covariance, Sx and Sy.
a. sketch a scatter diagram of the following bivariate data.
|
Point
|
A
|
B
|
C
|
D
|
E
|
F
|
G
|
H
|
I
|
J
|
|
x
|
0
|
1
|
1
|
2
|
3
|
4
|
5
|
6
|
6
|
7
|
|
y
|
6
|
6
|
7
|
4
|
5
|
2
|
3
|
0
|
1
|
1
|
b. compute the covariance.
c. work out sx and sy.
d. Calculating r using different formulae.