Scatter Plots and Correlation Test Review

Which graph best shows a positive correlation between the number of hours studied and the test scores?

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What is the type of correlation?

• Negative 

• no association

• positive 

If a scatterplot has no association then...

• ...it has no ordered pairs

• ...it has ordered pairs that have a negative pattern

• ...its ordered pairs have no predictable pattern

• ...if it makes a lion on a graph (roar!)

In a scatterplot, an outlier...

• ...is something we didn't learn 8th grade

• ...is a puppet with a long nose named Pinocchio

• ...is a point that is far outside the main cluster of points/ordered pairs

• ...is a really naughty point who doesn't tell the truth when outside

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.

How many bags of potatoes would you expect if there were 6 bags of seeds planted?

• 125

• 150

• 175

• 8

Does this have a linear association?

• Yes

• No

Does this have a linear association?

• Yes

• No

Which association best describes the relationship between the two variables for the following situation?
Pounds of grapes you buy and the amount of money you spend on grapes.

• Positive Association

• Negative Association

• No Association

Which association best describes the relationship between the two variables for the following situation?

The hours you study for a math test and your score on the math test.

• Positive Association

• Negative Association

• No Association