Scatter Plots & Correlation

Which graph represents a positive linear association between x and y?

• Graph A
• Graph B

Which graph represents a positive nonlinear association between x and y?

• Graph A

• Graph B

What is the type of correlation?

• Negative 
• no association
• positive 

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

About how many male math teachers were there in 2006?

• 15
• 30
• 35
• 45

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

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

In this image, how would you describe the point that does not fit the pattern of the other dots?

• The point is a linear model.
• The point is an outlier.
• The point is the range.
• The point is the median.

As the age of the car increases, its value decreases. Which scatterplot represents this relationship?

• A
• B
• C
• D

The size of a dog and the amount of dog food needed

• Positive correlation

• Negative correlation

• No correlation

Describe the correlation in the graph shown.

• Strong Negative
• Strong Positive
• Weak Negative
• Weak Positive