Quick Check 4.6 - 4.7: Scatter Plots & Line of Best Fit

You are analyzing a scatter plot that has a negative correlation. What is true of the of the x and y values?

• As x increases, y decreases

• As x increases, y increases

• As x decreases, y decreases

• As x decreases, y increases

Identify the type of correlation shown in the graph.

• Positive

• Negative

• No Correlation

• Undefined

Tags

CCSS.HSS.ID.B.6

What type of correlation does this graph have?

• positive

• negative

• no correlation

• undefined

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

Identify the relationship between the number of siblings you have and your weight.

• Positive relationship

• Negative relationship

• No relationship

• All of the above

Tags

CCSS.HSS.ID.B.6

CCSS.HSS.ID.C.8

What is a scatter plot?

• A graph that shows the relationship between 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.

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

Identify the relationship between the number of miles you drive and the amount of gas left in your tank.

• Positive relationship

• Negative relationship

• No relationship

• All of the above

Which equation best represents the line of fit?

• y = x + 7.5

• y = -x +7.5

• y = 1/2x + 7.5

• y = -1/2x + 7.5

Tags

CCSS.HSA.CED.A.2

CCSS.HSS.ID.B.6

CCSS.HSS.ID.C.7

Which equation represents the line of best fit?

• y = 5/2x - 1

• y = 5/2x + 1

• y = -5/2x - 2.5

• y = 5/2x - 2.5