Consider the following set of data:

(a) Draw a scatter diagram of the data and compute the linear correlation coefficient.
(b) Draw a scatter diagram of the data and compute the linear correlation coefficient with the additional data point (10.4, 9.3). Comment on the effect the additional data point has
on the linear correlation coefficient. Explain why correlations should always be reported with scatter diagrams.

Transcribed Image Text:

r 2.2 3.73.9 2.6 4.1 2.9 4.7 y 3.9 4.01.4 2.8 1.5 3.3 3.6 4.9