1 Consider the scatter diagram in figure to the right a Whic

1.

Consider the scatter diagram in figure to the right. a. Which point is an outlier? Ignoring the outlier, estimate or compute the correlation coefficient for the remaining points.

Solution

(a) Here outlier ordered pair is (0.1,1.2).

(a) Here outlier ordered pair is (0.4,1.4).

Following is the data set after removing outlier:

Scatter plot shows that there is not correlation between the variables after removing the outlier. From exacle correlation coeffcient between the variables is 0.

Scatter plot shows that there is not correlation between the variables after removing the outlier. From excel correlation coeffcient between the variables is 0.

X	Y
0.8	0.4
0.8	0.6
0.8	0.8
1.0	0.4
1.0	0.6
1.0	0.8
1.2	0.4
1.2	0.6
1.2	0.8