Strong or Weak Correlation Given R Values

When the data closely resembles a line

• Strong Correlation

• Weak Correlation

• No Correlation

• Correlation

The data slightly resembles a line but is more spread out

• Strong Correlation

• Weak Correlation

• No Correlation

• Correlation

The measure of the strength and direction of a linear relationship

• Interpolation

• Extrapolation

• Correlations Coefficient

• Residual

Describe the correlation in the graph shown.

• Strong Negative

• Strong Positive

• Weak Negative

• Weak Positive

What does an r-value of -0.96 tell you about the data set?

• strong positive

• weak positive

• strong negative

• weak negative

Is r = -0.87 strong, moderate, or weak?

• strong

• moderate

• weak

Determine the Correlation Coefficient and decide whether it is weak, moderate, or strong.

• -0.19 weak

• -0.19 moderate

• 0.04 weak

• 0.04 strong

Determine the Correlation Coefficient and decide whether it is weak, moderate, or strong.

• 0.07 weak

• -0.26 weak

• -0.26 moderate

• 0.07 strong

What does an r-value of 0.4 tell you about the data set?

• strong positive

• weak positive

• strong negative

• weak negative

r=-0.89

• Strong positive 

• Weak positive 

• Strong negative 

• Weak negative