Scatter Plots Review

What is the type of correlation?

• Negative 
• no association
• positive 

What type of correlation does this graph have?

• positive 
• negative
• none
• all of the above

What type of correlation does this graph have?

• positive
• negative
• none
• all of the above

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 140 pages. 

• 12 chapters
• 19 chapters
• 14 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 trend line to predict how many pages would be in a book with 6 chapters. 

• 100 pages
• 170 pages
• 60 pages
• 20 pages

You are analyzing a scatter plot that has a negative correlation. What is true of the of the x and y values?

• As x increases, y decreases
• As x increases, y increases
• As x decreases, y decreases

What is a line of best fit used for?

• To make predictions
• To make the graph look pretty
• To connect the points
• To make it look like you know what you are doing

Which with is the line of best fit?

• Black
• Orange
• Red
• Blue

• A

• B

• C

• D

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

• A
• B
• C
• D