Scatterplot Introduction

Which of the following lines represents the line of best fit for the scatter plot?

• A

• B

• C

• D

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

The following scatter plot shows the weights and lengths of some dinosaurs.  Which statement accurately describes the information?

• The information shows a positive correlation.  The weight of a dinosaur tends to increase according to its length.

• The information shows a negative correlation.  the weight of a dinosaur tends to decrease according to its length.

• The information shows no correlation.  The weight and length vary according to the type of dinosaur.

• The information shows no correlation.  The relationship between the weight and length of a dinosaur is uncertain.

Which graph shows a line of best fit for the scatter plot?

• Graph A

• Graph B

• Graph C

• Graph D

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

• A

• B

• C

• D

What relationship is shown in the scatter plot?

• As the cost goes down, the number sold goes down.

• As the cost goes up, the number sold goes down.

• As the cost goes down, the number sold remains the same.

• There is not relationship between cost and the number sold.

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

• A

• B

• C

• D

Which would NOT likely be the variables represented on the scatter plot in #9?

• The number of miles driven and the gallons of gas used

• The number of students in a school and the number of unused lockers

• The number of items ordered at a restaurant and the cost of the bill

• The number of customers in a store and the length of the wait at the register

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

• A

• B

• C

• D

This scatterplot could show the relationship between which two variables?

• speed of an airplane (x) vs. distance traveled in one hour (y)

• outside air temperature (x) vs. air-conditioning costs (y)

• age of an adult (x) vs. height of an adult (y)

• distance traveled (x) vs. gas remaining in the tank (y)