Scatter Plots

In a scatterplot, an outlier...

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

• ...is a point on the origin

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

• ...is a group of points that are close together

About how many male math teachers were there in 2006?

• 15

• 30

• 35

• 45

What is a line of best fit used for?

• To make predictions

• To make the graph look pretty

• To connect the points

• To make it look like you know what you are doing

As x increases, y increases shows ........

• correlation coefficient

• causation

• positive association

• negative association

What type of association does this graph have?

• positive

• negative

• none

• all of the above

What type of association does this scatter plot represent?

• positive linear association

• negative association

• no association

• nonlinear association

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

• A

• B

• C

• D

If a scatterplot has no correlation 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!)

What type of association does this scatter plot represent?

• positive linear association

• negative linear association

• no association

• nonlinear association

About how many male math teachers were there in 2006?

• 15

• 30

• 35

• 45