CCSS.Math.Content.HSS.ID.B.6

Describe the relationship between the variables.

• Weak positive correlation
• Weak negative correlation
• Strong positive correlation
• Strong negative correlation

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CCSS.Math.Content.HSS.ID.B.6

A teacher made the following graph showing the number of hours that a student studied for an exam versus their exam grade.  Predict the grade of a student if they studied for 3.5 hours.  

• 80
• 100
• 85
• 90

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CCSS.Math.Content.HSS.ID.B.6

What is a scatter plot?

• A graph that shows the relationship of two data sets.
• A graph drawn using rectangular bars to show how large each value is.
• A graph that shows information that is connected in some way.
• A graph that shows data changing over time.

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CCSS.Math.Content.HSS.ID.B.6

What type of correlation does this graph have?

• positive

• negative

• none

• all of the above

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CCSS.Math.Content.HSS.ID.B.6

Which sentence describes the relationship shown on this scatter plot?

• As the temperature decreases, the visitors increase.

• As the temperature increases, the number of visitors increases.

• As the visitors increase, the temperature decreases.

• No correlation

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CCSS.Math.Content.HSS.ID.B.6

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 19 chapters.

• 150 pages

• 170 pages

• 190 pages

• 210 pages

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CCSS.Math.Content.HSS.ID.B.6

Households consume much more electricity when the weather is warmer. What is the correlation?

• Strong Positive

• Strong Negative

• Weak Positive

• Weak Negative

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CCSS.Math.Content.HSS.ID.B.6

Estimate the correlation coefficient for this scatterplot.

• A) r = 1.2

• B) r = 0.89

• C)r = 0

• D) r = -0.89

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CCSS.Math.Content.HSS.ID.B.6

The scatterplot shows the average number of hours 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 scatterplot, 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 h

• 85 h

• 50 h

• 65 h

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CCSS.Math.Content.HSS.ID.B.6

Which of the following lines represents the line of best fit for the scatter plot?

• A
• B
• C
• D

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CCSS.Math.Content.HSS.ID.B.6