Scatter Plot, Line of Best Fit, Outliers

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

440 turtles 40 turtles 150 turtles 90 turtles

• 440 turtles

• 40 turtles

• 150 turtles

• 90 turtles

What type of association does this graph have?

• positive

• negative

• none

• all of the above

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?

• y = (3/2) x

• y = 30x

• y = 30x + 300

• y = (3/2)x + 300

Which point on the scatter plot is an outlier?

• Point S

• Point T

• Point U

• Point V

What is an outlier in the context of scatter plots?

• The lowest data point in the plot

• The highest data point in the plot

• A data point that lies far away from the other data points

• A data point that lies within the trend of the data

Which point on the scatter plot is an outlier?

• Point A

• Point B

• Point C

• Point D

What are the coordinates of the outlier?

• (3,4)

• (4,3)

• (3,10)

What are the coordinates of the outlier?

• (1,9)

• (9,1)

• (2,2)

• y=x

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.