Scatter Plots

• Positive

• Negative

• None

• Positive

• Negative

• None

What type of correlation is seen

• positive

• negative

• none

What type of association does this graph have?

• positive 
• negative
• none
• all of the above

What is the correlation?

• Negative correlation
• No correlation
• Positive correlation
• All of the above

What is a scatter plot?

• A graph that shows the relationship of two data sets.
• A graph drawn using rectangular bars to show how large each value is.
• A graph that shows information that is connected in some way.
• A graph that shows data changing over time.

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

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

Answer explanation

Notice how Graph C is the only graph that is LINEAR. The other graphs are nonlinear or no relationship because they either curve or there is no clear way of telling if they are a positive or negative.

What type of association does this graph have?

• positive 
• negative
• none
• all of the above

As x increases, y increases

• correlation coefficient
• causation
• positive correlation
• negative correlation

You are analyzing a scatter plot that has a negative correlation. What is true of the of the x and y values?

• As x increases, y decreases
• As x increases, y increases
• As x decreases, y decreases