Question

Looking at the spread of the distribution of dots and the r value, what conclusions are you drawing from that?

Answer 1

Solution:-

The correlation coefficient r measures the strength and direction of a linear relationship between two variables on a scatter plot.

Value of r:-

r=-1 A perfect negative linear relationship

r=–0.70 A strong negative linear relationship

r=–0.50 A moderate negative relationship

r=–0.30 A weak negative linear relationship

r=0 No linear relationship

r=+0.30 A weak positive linear relationship

r=+0.50 A moderate positive relationship

r=+0.70 A strong positive linear relationship

r=+1 A perfect positive linear relationship