Unit 3 Analyzing Two-Variable Data Review

Describe the association between the number of lanes rented and the number of people bowling.

• Non-linear association
• Negative linear association
• No association
• Positive linear association

What would happen to the correlation if the number of people bowling was on the horizontal axis and the number of lanes rented was on the vertical axis?

• The correlation would change because it distinguishes between the explanatory and response variables.

• The correlation would stay the same because it does not distinguish between the explanatory and response variables.

• The correlation would change because changing the units of measurement changes the correlation.

• The correlation would stay the same because changing the units of measurement does not change the correlation.

Which conclusion is best supported by the scatterplot?

• As the length of a call increases, the cost of the call increases.
• As the length of a call increases, the cost of the call remains the same.
• As the length of a call increases, the cost of the call decreases.
• There is no relationship between the length of a call and the cost of the call.

Describe the association for the graph.

• Linear and Positive

• Linear and Negative

• Non-Linear and Negative

• Non-Linear and Positive

• Non-Linear and No Association

Describe the association for the graph.

• Linear and Positive

• Linear and Negative

• Non-Linear and Positive

• Non-Linear and Negative

• Non-Linear and No Association

What would happen to the correlation if the time spent reading and watching TV was measured in minutes instead of in hours?

• The correlation would change because it distinguishes between the explanatory and response variables.

• The correlation would change because changing the units of measurement changes the correlation.

• The correlation would stay the same because it does not distinguish between the explanatory and response variables.

• The correlation would stay the same because changing the units of measurement does not change the correlation.

What type of correlation does this graph have?

• Linear and Negative

• Non-Linear and No Association

• Linear and Positive

• Non-Linear and Negative

• Non-Linear and Positive

Which scatter plot shows a negative relationship?

• Graph A
• Graph B
• Graph C
• Graph D

Which scatter plot shows no relationship?

• Graph A
• Graph B
• Graph C
• Graph D

Which scatter plot show a positive relationship?

• Graph A
• Graph B
• Graph C
• Graph D