Scatter Plots and Trend Lines

How would you describe the correlation between the variables in the scatter plot?

• positive

• negative

• outlier

• cluster

How would you describe the correlation between the variables in the scatter plot?

• positive

• negative

• outlier

• cluster

Which sentence describes the association shown on this scatter plot?

• As temperature decreases, the number of visitors increase.

• As temperature increases, the number of visitors increase.

• As temperature increases, the number of visitors decrease.

• No association

Based on the scatter plot, what is a reasonable estimate for ice cream sales when the temperature is 21 degrees Celsius?

• $600

• $450

• $300

• $100

• $21

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

• 12 chapters

• 15 chapters

• 18 chapters

• 21 chapters

 The scatter plot shows the relationship between the number of chapters and the total number of pages for several books. Use the line of best fit to predict how many pages would be in a book with 19 chapters.

• 170 pages

• 150 pages

• 210 pages

• 190 pages

Which equation could represent a trend line for the data shown in this scatter plot?

Which equation could represent a trend line for the data shown in this scatter plot?

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