Statistics Correlation Coefficient

What type of association does this graph have?

• positive

• negative

• none

• all of the above

A perfect negative correlation has a correlation coefficient of ____. 

• 1

• -1

• 0

Which scatter plot diagram shows the strongest positive correlation?

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• 
• 
• 

Which graph represents data that has a correlation coefficient close to -1?

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• 
• 
• 

What kind of correlation?

• Positive

• Negative

• No

What type of correlation does this graph have?

• Positive correlation

• Negative correlation

• No correlation

• Constant correlation

What type of correlation does this scatter plot show?

• Positive correlation

• Negative correlation

• No correlation

• Constant correlation

What type of association does this graph have?

• positive 

• negative

• none

• all of the above

What kind of correlation?

• Positive

• Negative

• No

Estimate the correlation coefficient for this scatterplot.

• r = 1.2

• r = 0.89

• r = 0

• r = -0.89