Unit 7 Retest Scatter plots and Trend Lines

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

Tags

CCSS.HSS.ID.B.6

CCSS.HSS.ID.C.7

CCSS.HSS.ID.C.8

The following scatter plot shows Pam's training as she prepares to run a 6 mile race at the end of the month.  Which of the following would be a reasonable approximation for the length of time it would take for her to run 6 miles? 

• A. 50 min
• B. 80 min
• C. 45 min
• D. 60 min

Tags

CCSS.HSS.ID.B.6

1.  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

Identify the type of association.
The number of workers and the time it takes to build a house.

• Positive correlation
• Negative correlation
• No correlation

Tags

CCSS.HSS.ID.B.6

CCSS.HSS.ID.C.8

Which best describes the form of this scatterplot?

• linear
• nonlinear
• scattered

Tags

CCSS.8.F.A.3

• y= 8/7x+1
• y= 7/8x+1
• y= -7/8 +1
• y= -8/7+1

Tags

CCSS.8.EE.B.5

What is the slope of this graph?

• 3/2
• -2
• 2/3
• -2/3

Use the line of best fit to approximate rate of change relative to the scatter plot above.

• 7/5

• 5/7

• -7/5

• -5/7

Tags

CCSS.8.EE.B.5

Adrianna has $20 in her savings account. Each week she will add $5 to it. Which equation represents this situation?

• y=25x
• y=20x+5
• y=5x+20
• y=5x

Tags

CCSS.6.EE.C.9