Making Predictions and Inferences from Data

Is this line an accurate line estimate of best fit for the data?

• Yes

• No

Is this line an accurate line estimate of best fit for the data?

• Yes

• No

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

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

• 25 hours

• 35 hours

• 45 hours

• 15 hours

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

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

The red line represents the line of best fit for the scatter plot. How many ice cream sales are expected if the temperature is 90°?

• 55

• 0

• 103

• 100

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

• A

• B

• C

• D

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

• A

• B

• C

• D

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

• There is no line of best fit for this graph.

• B

• C

• D