Scatterplots and Lines of Best Fit

What type of correlation does this graph have?

• positive
• negative
• none
• all of the above

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 does the slope represent in this situation?

• The sloth runs 1 feet in 3 minutes
• The sloth runs 3 feet in 1 minute
• The sloth runs fast
• The sloth runs 6 feet in 1 minute

What type of association does this scatter plot represent?

• positive linear association
• negative linear association
• no association
• nonlinear association

What type of association (correlation) does this graph have?

• positive 
• negative
• none
• all of the above

Which equation best represents the data?

• A.  y= -3/5x + 2
• B  y = 5/3x -2 
• C  y = -3/5x - 2
• D  y= 5/3x + 2

Which equation best represents the data?

• A  y = 2x + 2
• B  y= 1/2x - 2
• C  y = -2x + 2
• D  y = -1/2x + 2

Which equation best represents the data?

• A  y = 4x
• B  y = -4x
• C  y = 1/4x
• D   y = -1/4 x

Which equation best represents the data?

• A  y = x + 2
• B  y = -x + 2
• C  y = x - 2
• D  y = -x - 2 

Which equation best represents the data?

• A  y = 3/4x + 1
• B  y = 4/3x - 1
• C  y = -3/4x - 1
• D  y = -4/3x - 1