Scatter Plots and Line of Best Fit

What is the type of correlation?

• Negative 
• no association
• positive 

Tags

CCSS.HSS.ID.B.6

CCSS.HSS.ID.C.8

CCSS.HSS.ID.C.9

The scatter plot shows the relationship between the number of chapters and the total number of pages for several books.  Use the trend line to predict how many chapters would be in a book with 140 pages. 

• 12 chapters
• 19 chapters
• 14 chapters
• 21 chapters

Tags

CCSS.HSF.IF.B.4

CCSS.HSS.ID.B.6

CCSS.HSS.ID.C.7

About how many male math teachers were there in 2006?

• 15
• 30
• 35
• 45

Tags

CCSS.HSS.ID.B.6

Which scatter plot shows a linear relationship between x and y?

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

Tags

CCSS.HSS.ID.B.6

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?

• 85

• 92

• 70

• 76

Tags

CCSS.HSS.ID.B.6

CCSS.HSS.ID.C.7

What is a line of best fit used for?

• To make predictions
• To make the graph look pretty
• To connect the points
• To make it look like you know what you are doing

Tags

CCSS.HSS.ID.B.6

CCSS.HSS.ID.C.7

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

• Yes

• No

Tags

CCSS.HSS.ID.B.6

CCSS.HSS.ID.C.7

CCSS.HSS.ID.C.8

What is the equation of the line of best fit

• y= -2x + 10

• y= 10x+ 2

• y= 10

Tags

CCSS.HSA.CED.A.2

CCSS.HSS.ID.B.6

CCSS.HSS.ID.C.7

Which line is the best line of best fit?

• a

• b

• c

• i don't see any lines

Tags

CCSS.HSS.ID.B.6

CCSS.HSS.ID.C.7

Shown is a residual plot. Would a linear regression model of the data be most appropriate?

• YES
• NO

Tags

CCSS.HSS.ID.A.3