Page 4 - Home assignment-correlation analysis.
P. 4
3
3
3
3 −3 2 −2 4 −4
6×(20+ + + )
= 1 − 12 9 −9 12 12
3
6 20+2+0.5+5 165
= 1 − 720 = 1 − 720 = 0.77
There exists a high degree of positive correlation between x and y.
When Ranks are Given
Example
Two referees in a flower beauty competition rank the 10 types of flowers as
follows:
Use the rank correlation coefficient and find out what degree of agreement is
between the referees.
Solution:
