Reasonable Fit Data Predictions

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

• 25 hours

• 35 hours

• 45 hours

• 15 hours

What type of correlation does this graph have?

• positive linear
• negative linear
• positive nonlinear
• negative nonlinear

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

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

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

What is a trend line used for?

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

The following scatter plot shows Pam's training as she prepares to run a 6 mile race at the end of the month.  Which of the following would be a reasonable approximation for the length of time it would take for her to run 6 miles? 

• A. 50 min
• B. 80 min
• C. 45 min
• D. 60 min

What is the type of correlation?

• Negative 
• no association
• positive 

Using the trend line, predict how many turtles would be in the population after 9 months.

• 105

• 95

• 85

• 115

If Joe worked 30 hours, how much is he expected to earn?

• $600
• $200
• $1000
• $800

Choose the graph with a trend line that best fits the data.

• graph 1

• graph 2

• graph 3

• graph 4