Correlations and Line of Best Fit

What type of correlation does this graph have?

• positive 
• negative
• none
• all of the above

What type of correlation does this graph show?

• Positive
• negative
• none
• all of the above

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

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

Which sentence describes the relationship shown on this scatter plot?

• As the temperature decreases, the visitors increase. 
• As the temperature increases, the number of visitors increases. 
• As the visitors increase, the temperature decreases. 
• No correlation

What would be the correlation between study time and test grades?

• positive
• negative
• none
• cannot be determined

What would the correlation between elevation and temperature?

• none
• cannot be determined
• positive correlation
• negative correlation

What kind of trend is shown from this scatterplot?

• positive correlation
• negative correlation
• none
• cannot be determind

What type of association does this graph have?

• positive
• negative
• none
• all of the above

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

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