CCSS.Math.Content.8.SP.A.1

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.1

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

In a scatterplot, an outlier...

• ...is something we didn't learn 8th grade
• ...is a puppet with a long nose named Pinocchio
• ...is a point that is far outside the main cluster of points/ordered pairs
• ...is a really naughty point who doesn't tell the truth when outside

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CCSS.Math.Content.8.SP.A.1

Which of the following could be a possible line of best fit for the data?

• y = -5/2x + 20
• y = -x + 19
• y = x + 20
• y = 2/3x + 15 

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CCSS.Math.Content.8.SP.A.1

What kind of correlation?

• Positive
• Negative
• No

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CCSS.Math.Content.8.SP.A.1

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.1

Which sentence describes the relationship shown on this scatter plot?

• The more time spent training, the longer it takes to run 100 m.  
• As the time spent training increases, the time to run 100 m decreases. 
• As the time spent training decreases, the time to run 100 m decreases. 

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CCSS.Math.Content.8.SP.A.1

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

If there is NO correlation, the correlation coefficient is ____. 

• 1
• -1
• 0

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CCSS.Math.Content.8.SP.A.1

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

What type of correlation does this scatterplot display?

• Positive

• Negative

• No Correlation

Tags

CCSS.Math.Content.8.SP.A.1

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.1

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

The scatter plot shows the average number of hours of each of 13 people spends at work every week and the average number of hours each of them spends on recreational activities every week.

Based on the scatter plot, what is the best prediction of the average number of hours a person spends at work every week if that person spends an average of 10 hours on recreational activities each week?

• 33 hours

• 50 hours

• 65 hours

• 85 hours

Tags

CCSS.Math.Content.8.SP.A.1

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