Scatter plots and trend lines

What is a positive slope?

• A graph that increases left to right
• slope
• A graph that goes up and down

What is the possible data that a negative correlation represents?

• slope
• The decrease of rain fall
• The increase of earthquakes

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

Tags

CCSS.HSS.ID.B.6

CCSS.HSS.ID.C.7

What is the type of association?

• Negative 
• no association
• positive 

Tags

CCSS.HSF-LE.A.1B

What type of association does this scatter plot show?

• positive linear association
• negative linear association
• no association
• nonlinear association

Tags

CCSS.HSF-LE.A.1B

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

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

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 pages would be in a book with 19 chapters. 

• 150 pages
• 170 pages
• 190 pages
• 210 pages

Tags

CCSS.HSS.ID.B.6

CCSS.HSS.ID.C.7

CCSS.HSF.IF.B.4

CCSS.HSF.IF.C.7