Regression Review

Match the following

• Negative, Linear Correlation

• 
• Positive, Linear Correlation

• 
• Non-linear Correlation

• 
• No Correlation

• 

Tags

CCSS.HSS.ID.B.5

If r = 0.87 what is the relationship of the data

• strong positive

• weak positive

• strong negative

• weak negative

• no correlation

Tags

CCSS.HSS.ID.B.5

If r = -0.03 what is the relationship of the data

• strong positive

• weak positive

• strong negative

• weak negative

• no correlation

Tags

CCSS.HSS.ID.B.5

To convince his students to slow down, Coach Logan tracks the typing speed and the number of errors made from a few of his students.

Calculate the correlation coefficient, r, of the data set. Round to FOUR decimal places.

Mathematical Equivalence

ON

Tags

CCSS.HSS.ID.C.8

To convince his students to slow down, Coach Logan tracks the typing speed and the number of errors made from a few of his students.

What is the slope of the line of best fit?

Mathematical Equivalence

ON

Tags

CCSS.8.EE.B.5

To convince his students to slow down, Coach Logan tracks the typing speed and the number of errors made from a few of his students.

What is the y-intercept of the line of best fit?

round to 2 decimal places

Mathematical Equivalence

OFF

Calculate the correlation coefficient for this data set and round to 4 places after the decimal.

(1, 4), (5, 4), (6, 9), (7, 12)

Mathematical Equivalence

ON

Tags

CCSS.HSS.ID.C.8

What is the slope of the line of best fit for this data set. Round to 3 places after the decimal.

(1, 4), (5, 4), (6, 9), (7, 12)

Mathematical Equivalence

ON

Tags

CCSS.8.EE.B.5

What is the y-intercept of the line of best fit for this data set. Round to 3 places after the decimal.

(1, 4), (5, 4), (6, 9), (7, 12)

Mathematical Equivalence

ON

Tags

CCSS.8.EE.C.8C

Use EXPONENTIAL regression equation to find a and b values?

• a = 157

  b = 1.8

• a = 1.8

  b = 157

• a = 512

  b = -179

• a = -179

  b = 512

Tags

CCSS.HSF.LE.A.2