Correlation Coefficient

Estimate the correlation coefficient for this scatterplot.

• r = -0.9

• r = 1

• r = 0.9

• r = -1

Estimate the correlation coefficient

• r = 1

• r = -1

• r ≈ -0.8

• r ≈ 0.8

• r ≈ -0.5

Estimate the correlation coefficient

• r=-1

• r=1

• r=-0.5

• r=0.5

Estimate the correlation coefficient.

• r=1

• r=-1

• r=0.5

• r=-0.5

Estimate the correlation coefficient

• r = -0.9

• r = 0.9

• r = -0.5

• r = 0.5

Determine the correlation coefficient of the given data.

• - .5477

• .1770

• .8956

• - .9463

What is most likely the correlation coefficient for this data set?

• r = -0.20

• r = -0.75

• r = 0.85

• r = 1.00

As shown in the table, a person's target heart rate during exercise changes as the person gets older. Find the correlation coefficient (r).

• -0.999

• -0.664

• 0.998

• 1.503

Match the following correlation coefficients.

• strong negative

• 0.48

• strong positive

• -0.25

• weak negative

• 0.56

• weak positive

• -0.95

A perfect positive correlation has a correlation coefficient of ____. 

• 1

• -1

• 0