Scatterplots Correlation Line of Best Fit

Based on the scatter plot, which statement best describes the trend?

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

• As the daily temperature decreases, the number of beach visitors increases.

• As the daily temperature increases, there is no change in the number of beach visitors

• As the daily temperature increases, the number of beach visitors decreases

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

Predict the grade of a student that has 7 absences.

• 50

• 45

• 70

• 60

Based on the trend line, about how many guests should be expected if the temperature is around 80 degrees?

• 8,300

• 7,300

• 8

• 9,300

identify the outlier

• 30, 100

• 100, 30

• there is no outlier

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 6 absences should get approximately what score on the final exam? 

• 65

• 92

• 70

• 76

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

• 25 hours

• 35 hours

• 45 hours

• 15 hours

Non-Linear Correlation Postive, Linear Correlation Negative, Linear Correlation No Correlation

• Non-Linear Correlation

• Postive, Linear Correlation

• Negative, Linear Correlation

• No Correlation

Find the slope from the table.

• -4

• 1

• 4

• -2

Which of these points appears to be an “Outlier?”

• A

• B

• C

• D