Page 3 - Home assignment-correlation analysis.

30 26 0 0 0 0 0

34 28 4 2 16 4 8
37 30 7 4 49 16 28
n=6 = −8 = −13 = 190 = 145 = 161
2
2

−

=
2
2
2
− ( ) − ( ) 2

6×161−(−8)×(−13)
 =
2
6×190−(−8) 6×145−(−13) 2
966−104
 =
1140−64 870−169
862
 =
1076 701
862
 =
754276
862
 = = 0.992
868.490
There exists a very high degree of positive correlation between x and y.

Step Deviation Method

Coefficient of correlation is calculated using the following

formula