Regression and Correlation

Estimate the correlation coefficient for this scatterplot.

• A) r = 1.2

• B) r = 0.89

• C)r = 0

• D) r = -0.89

Tags

CCSS.HSS.ID.C.8

Estimate the correlation coefficient for this scatterplot.

• A) r = -0.9

• B) r = 1

• C) r = 0.9

• D) r = -1

Tags

CCSS.HSS.ID.C.8

What type of correlation does this graph show?

• A) Positive

• B) negative

• C) none

• D) all of the above

Tags

CCSS.HSS.ID.B.5

Find the LINEAR regression equation for the following data.

• y = – 0.01x + 3.85

• y = – 0.32x + 4.09

• y = – 0.59x + 6.30

• y = – 0.64x + 8.18

Tags

CCSS.8.EE.C.8C

Describe the relationship between the variables.

• A) Weak negative correlation

• B) Moderate negative correlation

• C) Moderate positive correlation

• D) Strong negative correlation

Tags

CCSS.HSS.ID.B.5

The table shown is comparing a person's foot length to their height in cm. Calculate a line of best fit.

• y = 25.05 + 5.57x

• y = 5.57 + 25.05x

• y = -5.57 + 25.05x

• y = 5.57 - 25.05x

The value of the correlation coefficient, r, lies between:

• 0 and 1

• -1 and 0

• -1 and +1

• -0.5 and +0.5

Tags

CCSS.HSS.ID.B.5

What graph best shows correlation? 

• Bar Graph
  
• Histogram
• Ogive
• Scatterplot

Describe the correlation in the graph shown.

• A) Strong Negative

• B) Strong Positive

• C) Weak Negative

• D) No Correlation

Tags

CCSS.HSS.ID.B.5

Which of the following best describes this correlation?

• Positive, Strong

• Negative Strong

• Positive Weak

• Negative Weak

Tags

CCSS.HSS.ID.B.5