Scatterplots and Association

Pick the best description of the association

• Positive linear weak association with clusters

• Positive linear strong association

• Negative non linear weak association

• positive non linear association

Which scatter plot shows a negative relationship?

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

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.

how would you describe this association?

• positive linear strong

• positive linear weak

• positive linear moderate

• no association

What type of association does this scatter plot show?

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

What type of association does this scatter plot represent?

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

Which scatter plot appears to be more linear?

• Scatter plot A,

• Scatter plot B

This scatter plot shows the average traffic volume and average vehicle speed on a certain freeway for 50 days in 1999.  Which statement best describes this relationship.

• As traffic volume increases, vehicle speed increases.
• As traffic volume increases, vehicle speed decreases.
• As traffic volume increases, vehicle speed increases at first, then decreases.
• As traffic volume increases, vehicle speed decreases at first, then increases.

How would you describe the association?

• negative linear strong with outlier

• negative non linear weak

• positive linear moderate with outlier

• outlier

What type of association is shown in the scatter plot?

• Positive

• Negative

• No association