Scatter Plots and Interpreting Trend Lines

The scatter plot shows the number of visitors at an art show in relation to admission price. What does Point A on the graph represent?

• When the ticket price was $15 a total of 120 visitors attended the art show.

• When the ticket price was $120 a total of 15 visitors attended the art show.

• When the ticket price was $5 a total of 240 visitors attended the art show.

• When the ticket price was $20 a total of 60 visitors attended the art show.

What is a scatter plot?

• A table of measurement data used to construct a graph

• A display of points that shows the relationship between two sets of data

• A graph that has several different lines scattered on a coordinate plane

• A graph that is nonlinear

The following table shows the measurements of sharks at an aquarium. Choose the scatter plot that represents the data.

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• 
• 
• 

Which point is the outlier on this scatter plot?

• (0.07, 18)

• (68, 165)

• (85, 220)

• (105, 320)

Choose Yes or No to tell whether the following statements is true. The Art Show Attendance scatter plot shows a positive association.

• Yes

• No

Choose Yes or No to tell whether the following statements is true. The Shark Size scatter plot shows a positive association.

• Yes

• No

Choose Yes or No to tell whether the following statements is true. No association means the y-values increase as the x-values decrease.

• Yes

• No

Choose Yes or No to tell whether the following statements is true. Scatter plots show the association between paired data.

• Yes

• No

What is the type of association?

• Negative 
• no association
• positive 

What type of association does this graph have?

• positive 
• negative
• none
• all of the above