CCSS.Math.Content.8.SP.A.2

Which scatter plot shows a linear relationship between x and y?

• Graph A
• Graph B
• Graph C
• Graph D

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CCSS.Math.Content.8.SP.A.2

If the debate team practiced for 4 hours, how many debates are they expected to win?

• 20
• 16
• 8
• 12

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CCSS.Math.Content.8.SP.A.2

The following scatter plot shows Pam's training as she prepares to run a 6 mile race at the end of the month.  Which of the following would be a reasonable approximation for the length of time it would take for her to run 6 miles? 

• A. 50 min
• B. 80 min
• C. 45 min
• D. 60 min

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CCSS.Math.Content.8.SP.A.2

Describe the correlation in the graph shown.

• Strong Negative
• Strong Positive
• Weak Negative
• Weak Positive

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CCSS.Math.Content.8.SP.A.2

What type of association does this graph have?

• positive 
• negative
• none
• all of the above

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CCSS.Math.Content.8.SP.A.2

In the scatter plot, does the image shows a "Line of Best Fit"?

• Yes
• No

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CCSS.Math.Content.8.SP.A.2

Estimate the correlation coefficient

• r = 1

• r = -1

• r ≈ -0.8

• r ≈ 0.8

• r ≈ -0.5

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CCSS.Math.Content.8.SP.A.2

Write an equation for the given scatter plot.

• y=2x+8

• y=1x

• 8x-4y=10

• y=7

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CCSS.Math.Content.8.SP.A.2

Carbon dioxide levels in the atmosphere are increasing. Fossil fuel use is increasing. Knowing just these two facts and NO OTHER INFORMATION, what is this?

• Both

• Causation

• Correlation

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CCSS.Math.Content.8.SP.A.2

Which scatterplot does NOT suggest a linear relationship between x and y?

• 
• 
• 
• 

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CCSS.Math.Content.8.SP.A.2