Scatter Plot and Correlation

What type of association does this scatter plot represent?

• positive linear association

• negative linear association

• no association

• nonlinear association

Determine the correlation coefficient of the given data:

• .9820

• -.9643

• -1.409

• .164

Determine the Correlation Coefficient and decide whether it is weak, moderate, or strong.

• 0.07 weak

• -0.26 weak

• -0.26 moderate

• 0.07 strong

The correlation coefficient is a number "r" such that: 

• -1<r<1

• -1>r>1

• -1≤r≤1

• -1≥r≤1

If the correlation coefficient of a table of data is 0.85, what is true about the line of best fit?

• There is a weak, positive relationship

• There is a strong, positive relationship

• There is a weak, negative relationship

• There is a strong, negative relationship

Tags

CCSS.HSF-LE.A.1B

In a scatterplot of the average grade point of a high school student and the average hours that he/she spend on his/her homework, you expect to see:

• very little association

• a strong association

• a weak positive association

• a strong positive association

What can we determine from the correlation coefficient (r)?

• Style + Type

• Percentage + Direction

• Strength + Direction

• Strength + Style

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 12 absences should get approximately what score on the final exam?

• 60

• 92

• 70

• 76

As the age of the car increases, its value decreases. Which scatterplot represents this relationship?

• A

• B

• C

• D

What represents the x axis?

• ABC Company

• Hours Worked

• Amount Earned in Dollars

• Hours in Car

Tags

CCSS.8.EE.B.5