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

The scatter plot shows the relationship between the number of chapters and the total number of pages for several books.  Use the trend line to predict how many chapters would be in a book with 180 pages. 

• 12 chapters
• 15 chapters
• 18 chapters
• 21 chapters

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

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.1

If the carpenter worked for 6 days, how much did he earn?

• 1250
• 1500
• 1750
• 2000

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

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

In a scatterplot, an outlier...

• ...is Q1 - (1.5 x IQR) or Q3 + (1.5 x IQR) 
• ...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

What is the line of best fit?

• f(x)= 5x+1.82
• cannot be determined
• f(x)= 1.82x + 5.02
• f(x)= 1.1x + 4.2

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

Is this line an accurate line estimate of best fit for the data?

• Yes

• No

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

Which scatterplot suggests a linear relationship between x and y?

• 
• 
• 
• 

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

Negative Association

• An association that decreases as the other decreases (Going downhill)

• An association that increases as the other decreases (Going uphill)

• Has no relationship present

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

What type of correlation does this graph have?

• positive

• negative

• none

• all of the above

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