Line of Best Fit

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.8.EE.B.5

What is the line of best fit?

• f(x)= 5x+1.82
• cannot be determined
• f(x)= 1.82x + 5.02
• f(x)= 1.1x + 4.2

Tags

CCSS.8.EE.B.5

What is the type of correlation?

• Weak Negative

• Weak Positive

• No Correlation

• Strong Negative

• Strong Positive

About how many male math teachers were there in 2006?

• 15
• 30
• 35
• 45

Tags

CCSS.HSF.IF.B.4

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

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

Tags

CCSS.8.F.A.3

What would be the correlation between study time and test grades?

• positive
• negative
• none
• cannot be determined

Tags

CCSS.HSF-LE.A.1B

What would the correlation between elevation and temperature?

• none
• cannot be determined
• positive correlation
• negative correlation

Tags

CCSS.HSS.ID.B.6

CCSS.HSS.ID.C.8

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 a scatter plot?

• A graph that shows the relationship of two data sets.
• A graph drawn using rectangular bars to show how large each value is.
• A graph that shows information that is connected in some way.
• A graph that shows data changing over time.

Tags

CCSS.HSS.ID.B.6

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

• A
• B
• C
• D

Tags

CCSS.8.EE.B.5