5. Definition: Correlation coefficient " r " is a number between 1+1 and tell us how well a regression line fits the data. Estimate the correlations coefficient of the given distributions: a=1,b=0.9,c=0.5,d=0.5,e=0.9,f=1 - a=0,b=0.5,c=1,d=1,e=0.5,f=0 - a=1,b=0.9,c=0.5,d=0.5,e=0.9,f=1 - a=1,b=1,c=1,d=1,e=1,f=1 - a=0.9,b=1,c=0.5,d=0.5,e=1,f=0.9