For each of the scatterplots below identify the correct corr

For each of the scatterplots below, identify the correct correlation from the following possible set of correlations 1, -0.7714,0.9495,1.3126, -0.0250, 0, -1, -0.3287, -3.1257, and 0.235. Use each answer only once (if at all).

Solution

It is not actually or visually possible to identify the exact correlation coefficient of the data from a scatter plot, but by making guess on the basis of the properties of the correlation coefficient ,

(1) That a high possitive value we get when the data shows a more or less strict upward movement.

(2) A small possitive value when the data shows a very slight upward movement but mostly constant or scattered in a circular manner.

(3) Negative values both high and low can be interpreted similarly.

(4) In case of non-linear data like here the quadratic curve the measure will be \'0\' or vey close to \'0\'.

Pic A -0.0250

Pic B 0.235

pic C. 0.9495

pic D. -0.7714

pic E . 0