10/10 3.1-3.2 Practice

What type of association does this graph have?

• positive
• negative
• none
• 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.

Describe the association of the scatter plot

• Linear; positive association
• Linear; negative association
• Non-linear

What type of correlation does this scatterplot display?

• Positive

• Negative

• No Correlation

What type of relationship does this graph show?

• Positive
• Negative
• No Relationship
• Constant 

What type of association does this scatter plot show?

• positive linear association
• negative linear association
• no association
• nonlinear association

The response variable is:

• The variable we expect to explain or predict the value of the explanatory variable.

• Sometimes called the independent variable (IV)

• The variable we expect to change in response to the explanatory variable

• Also known as EV

We wish to investigate the relationship between the number seeds planted in a garden and the number of fruit grown. The explanatory variable (EV) is

• The number of fruit grown

• The amount of soil in the garden

• The number of hours spent watering the plants

• The number of seeds planted

Which of the following is true?

• We use the response variable to explain changes that might be observed in the explanatory variable.

• The explanatory variable is the variable we expect to be explained by the response variable

• The response variable is also known as the predictor variable

• The explanatory variable is used to explain or predict the value of the response variable

The Pew Research Center asked a random sample of 2024 adult cell-phone owners from the United States their age and which type of cell phone they own: iPhone, Android, or other (including non-smart phones). Use the information in the two-way table to make a segmented bar chart to show the relationship between age and type of cell phone.

Which of the following is the segmented bar chart?

• 
• 
• 
• You can't make a segmented bar chart for quantitative variables.