Scatterplot Line of Best Fit Two Way Table

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

• A

• B

• C

• D

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

What is the equation of the line of best fit?

• y = 3/2x

• y = 30x

• y = 30x + 300

• y = 3/2x + 300

The graph shows a line of best fit for data collected on the amount of income earned by lawn companies in relation to the number of yards mowed.  What is the equation of the line of best fit?

John plotted points on a graph to see if there was a relationship. Then he drew a line of best fit based on the fact that his line went through the most points possible.

Decide whether which statements are False.

• John's line of best fit is correct.

• John's line of best fit should be higher to be closer to all of the points.

• John's line of best fit should be lower so that it will go through more points.

Which statement best explains whether the line of best fit is a good fit for the data?

• The line of best fit is NOT a good fit for the data because there is an outlier.

• The line of best fit is a good fit for the data because it passes through two of the data points.

• The line of best fit is a good fit for the data because the data represents a positive association, and the line has a positive slope.

• The line of best fit is NOT a good fit for the data because most of the points are below the trend line.

What is the line of best fit?

• y = 5/3x + 375

• y = 1/3x + 475

• y = 5/3x + 3

• y = 1/3x + 375

The scatter plot below shows the number of books read by students in Mrs. Hall’s English class and their final grades. Which statement represents the best description about the line of best fit?

• The more books students read, the lower their English grade.

• The more books students read, the higher their English grade.

• The fewer books students read, the higher their English grade.

• No relationship exists between the number of books students read and their English grades.

The graph above shows a line of best fit for data collected on the distance bicyclists have remaining in relation to the amount of time they have been riding.  What is the equation of the line of best fit?