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

Correlation

• Association
• Deviation
• Punctuation
• Evaluation

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

What is the correlation between length of running start and distance of jump?

• positive:  the further you run the further you jump
• negative: the less you run the less distance of your jump
• positive: the further your running start the less your distance

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

What kind of correlation?

• Positive
• Negative
• No

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

A perfect positive correlation has a correlation coefficient of ____. 

• 1
• -1
• 0

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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.2

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 pages would be in a book with 6 chapters. 

• 100 pages
• 170 pages
• 60 pages
• 20 pages

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

Mrs. Collins made a scatterplot to show the relationship between the number of absences and a student’s final exam score. Based on this scatterplot, a student with 12 absences should get approximately what score on the final exam?

• 60

• 92

• 70

• 76

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

What is the equation of the line of best fit?

• y = -25x + 170

• y = -5/8x + 170

• y = 25x + 170

• y = 5/8x + 170

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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

What is Bivariate Data?

• A set of data that shows a relationship between two variables.

• A set of data that shows a relationship between three variables.

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