Question

If the X series denote experience and Y series denote performance and values of X series are 16, 12, 8, 9, 18, 9, 11, 16, 15, 3 and Y series are 23, 22, 24, 18, 16, 15, 28, 18, 25, 24. Find Karl Pearson's coefficient of correlation.

Answer 1

Answer:

-0.2245

Explanation:

Given the data :

X series :

16

12

8

9

18

9

11

16

15

3

Y series :

23

22

24

18

16

15

28

18

25

24

Using technology, the correlation coefficient value for the model whose data is given above is - 0.2245 which depicts that a weak negative relationship exists between the X series values varibale and Yseries variable. Our conclusion was inferred from the fact that - sign denotes negative and values close to zero denotes a weak association between the plotted variables.