Scatter Plots and Correlation

Is this function linear or nonlinear?

• Linear

• Nonlinear

Linear Function, Nonlinear Function, Not a Function?

• Linear Function

• Nonlinear Function

• Not a Function

Describe the correlation in the graph shown.

• Strong Negative

• Strong Positive

• Weak Negative

• Weak Positive

What type of association does this graph have?

• positive

• negative

• none

• all of the above

Estimate the correlation coefficient for this scatterplot.

• r = 1.2

• r = 0.89

• r = 0

• r = -0.89

r=-0.89

• Strong positive 

• Weak positive 

• Strong negative 

• Weak negative 

What type of association does this scatter plot represent?

• positive linear association

• negative linear association

• no association

• nonlinear association

Determine the correlation coefficient of the given data:

• .9820

• -.9643

• -1.409

• .164

Based on the graph, if Joe earned $400, how many hours did he work?

• 15 hours

• 20 hours

• 25 hours

• 30 hours

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