Scatter Plots and Trend Line

• 
• 
• 
• 

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

As x increases, y increases

• correlation coefficient
• causation
• positive correlation
• negative correlation

Which scatter plot shows a linear relationship between x and y?

• Graph A
• Graph B
• Graph C
• Graph D

Tags

CCSS.8.F.A.3

What is a line of best fit used for?

• To make predictions
• To make the graph look pretty
• To connect the points

Tags

CCSS.8.EE.B.5

• A

• B

• C

• D

Tags

CCSS.8.F.A.1

• A

• B

• C

• D

Tags

CCSS.8.F.A.1

CCSS.HSF.IF.A.1

• A

• B

• C

• D

Does this scatter plot have negative association or positive?

• No
• Positive
• Negative
• Non Linear

Tags

CCSS.HSF-LE.A.1B

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

• 20 hours
• 35 hours
• 45 hours
• 15 hours