Making Predictions Scatterplot

Is this line an accurate line estimate of best fit for the data?

• Yes

• No

Tags

CCSS.8.EE.B.5

Mrs. Collins made a scatterplot to show the relationship between the number of absences and a student’s final exam score. Based on this scatterplot, a student with 6 absences should get approximately what score on the final exam? 

• 65

• 92

• 70

• 76

Which of the following lines represents the line of best fit for the scatter plot?

• There is no line of best fit for this graph.

• B

• C

• D

Tags

CCSS.8.EE.B.5

Which of the following lines represents the line of best fit for the scatter plot?

• A

• B

• C

• There is no line of best fit for this graph because there is no trend.

Tags

CCSS.8.EE.B.5

About how many male math teachers were there in 2006?

• 15

• 30

• 35

• 45

Tags

CCSS.HSF.IF.B.4

Based on the graph, if Joe earned $400, how many hours did he work?

• 25 hours

• 35 hours

• 45 hours

• 15 hours

The scatterplot shows the relationship between test scores and number of hours studying for a very difficult exam.

The line of best fit equation is: y = 10x + 30.

Predict your test score if you studied for 4.5 hours.

• 75

• 45

• 60

• 80

The scatterplot shows the relationship between height (in cm) and arm span (in cm).

The line of best fit equation is y = 0.95x + 9.4.

Predict the heght if the arm span is 183 cm.

• 173.85 cm

• 181 cm

• 183.25 cm

• 189 cm

Describe the association.

• Strong, Positive

• Strong, Negative

• Weak, Positive

• Weak, Negative

Describe the association.

• Strong, Positive

• Strong, Negative

• Weak, Positive

• Weak, Negative