Correlation Coefficient and Residuals

• Positive, strong
• Positive, weak
• Zero
• Negative, strong

• Positive, strong
• Positive, weak
• Negative, strong
• Negative, weak

• Positive, strong
• Positive, weak
• Negative, strong
• Negative weak

• This residual plot represents a linear fit.
• This residual plot represents a nonlinear fit.
• This residual plot represents no fit.

Question 50

• 1

• 2

• 3

• 4

What is the value of the correlation coefficient?

• 0.891

• -0.891

• 0.875

• 0.943

• -0.943

The results of a linear regression are shown.

Which phrase best describes the relationship between x and y?

• strong negative correlation

• strong positive correlation

• weak negative correlation

• weak positive correlation

Use Desmos to generate a linear regression model. What is the value of the correlation coefficient, r?

• 0.8458

• 0.6918

• 3.19403

• 75.9403

Use Desmos to generate the linear regression model for this data set. What is the correlation coefficient, r?

• 0.9499

• 11.7313

• 193.852

• 0.9746

Given the following Scatter Plot, select the option that is most likely the r value.