Trendlines and Linear Relationships

Unit 5 Review

​Scatterplots, Trendlines &

Mean Absolute Deviation (M.A.D.)

8.5 (C)​ Determine if graphical data is linear or non-linear.

• Linear: Data is in the shape of a straight line.

• Non-Linear: Data is curved or has sharp turns.

Multiple Choice

Which scatterplot does NOT suggest a linear relationship between x and y?

8.5 (D) Use trend lines to make predictions.

Multiple Choice

• 152 cm

• 160 cm

• 162 cm

• 156 cm

8.11 (A) describe association of a scatterplot.

NOTE: This question was under 8.5 D in your packet, but ​it should be 8.11 A.

8.11(A)​ describe scatterplot association.

Multiple Choice

• There is a non-linear association between the number of lanes rented and the number of people who bowl.

• There is a negative linear association between the number of lanes rented and the number of people who bowl.

• There is a no apparent association between the number of lanes rented and the number of people who bowl.

• There is a positive linear association between the number of lanes rented and the number of people who bowl.

​8.11 B Determine mean absolute deviation.

Multiple Choice

• 24

• 66.5

• 4

• 67.5