Reading a Scatter Plot

Which sentence(s) describes the relationship shown on this scatterplot?

• 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 between temperature and visitors

• There is a positive correlation between temperature and visitors

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Statistics

Scatter Plots

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.

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Statistics

Scatter Plots

As the age of the car increases, its value decreases. Which scatterplot represents this relationship?

• A

• B

• C

• D

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Statistics

Scatter Plots

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

• y = -5/4x + 21

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Statistics

Line of Best Fit

What is the trend for this scatter plot

• Negative

• Positive

• None

In this image, how would you describe the point that does not fit the pattern of the other dots?

• The point is a linear model.

• The point is an outlier.

• The point is the range.

• The point is the median.

• The point is the vertex.

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Statistics

Scatter Plots

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

• A

• B

• C

• D

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Scatter Plots

Line of Best Fit

Statistics

Based on the graph, if Joe earned $400, how many hours did he work?

• 25 hours

• 35 hours

• 45 hours

• 15 hours

• 30 hours

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Statistics

Scatter Plots

Estimate the correlation coefficient

• r= -0.9

• r= 0.9

• r=-0.5

• r=0.5

• r= 0.1

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Statistics

Scatter Plots

What is the correlation?

• Negative correlation

• No correlation

• Positive correlation

• Quadratics

• Exponential

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Statistics

Scatter Plots