Scatterplot Variables

What does it mean to interpret a scatterplot in math?

• Analyzing the relationship between two variables by looking for patterns or trends in the plotted points.

• Drawing a line through the plotted points

• Ignoring the plotted points and focusing on the axes

• Counting the number of points on the scatterplot

What is the relationship between the variables in a scatterplot with a positive correlation?

• As one variable increases, the other variable also tends to increase

• The variables have a negative correlation

• There is no relationship between the variables

• As one variable increases, the other variable tends to decrease

Explain the relationship between variables in a scatterplot with a negative correlation.

• The variables have no relationship

• The variables have a positive correlation

• The variables have a curvilinear relationship

• The variables have an inverse relationship

Describe the relationship between the variables in a scatterplot with no correlation.

• There is no relationship between the variables.

• The variables have a strong negative correlation

• The variables have a strong positive correlation

• The relationship between the variables is unclear

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.

What are the two variables being compared in this scatter plot?

• Yogurt

• Temperature

• Sales

Answer explanation

To find the variables, look on the x-axis and the y-axis.

Temperature is x and sales is y!

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, the asking price increases.

• As the age of the car increases, the asking price decreases.

• The age of the car does not affect the asking price.

• The asking price consistently decreased by $10,000 per year.

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

What is the trend for this scatter plot

• Negative

• Positive

• None