Linear Regression & Correlation Coefficient

The scatter plot shows the relationship between the number of chapters and the total number of pages for several books. Use the trend line to predict how many chapters would be in a book with 180 pages.

• 12 chapters

• 15 chapters

• 18 chapters

• 21 chapters

Tags

CCSS.HSF.IF.B.4

CCSS.HSS.ID.B.6

CCSS.HSS.ID.C.7

Select the statement that best describes the line.

• The line is the line of best fit.

• The line is not a line of best fit because it does not pass through two points.

• The line is not a line of best fit because it does not go through the middle of the data set.

• The line is not a line of best fit because it does not go through the origin.

Tags

CCSS.HSS.ID.B.6

CCSS.HSS.ID.C.7

The equation of the trend line is y= 1/2x +1. How many laps can a bicycle make around the park in 23 minutes?

• 44 laps

• 12 1/2 laps

• 23 laps

Tags

CCSS.HSA.CED.A.2

CCSS.HSA.REI.D.10

CCSS.HSA.SSE.A.1

CCSS.HSS.ID.C.7

Which line represents the best fit for the scatter plot?

• A

• B

• C

• D

Tags

CCSS.HSF.IF.B.4

CCSS.HSS.ID.B.6

CCSS.HSS.ID.C.7

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

• A

• B

• C

• There is no line of best fit for this graph because there is no trend.

Tags

CCSS.HSF.IF.B.4

CCSS.HSS.ID.B.6

CCSS.HSS.ID.C.7

CCSS.HSS.ID.C.8

The red line represents the line of best fit for the scatter plot. How many ice cream sales are expected if the temperature is 90°?

• 55
• 0
• 103
• 100

Tags

CCSS.HSF.IF.B.4

CCSS.HSF.IF.C.7

CCSS.HSS.ID.B.6

CCSS.HSS.ID.C.7

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.HSA.CED.A.2

CCSS.HSA.REI.C.6

CCSS.HSA.REI.D.10

CCSS.HSA.REI.D.11

CCSS.HSF.IF.B.4

CCSS.HSF.IF.C.7

CCSS.HSS.ID.B.6

CCSS.HSS.ID.C.7

Calculate the line of best fit.

• y = 510x + 8750

• y = 8750 + 510x

• y = 3x + 10700

• y = 10700x + 3

Tags

CCSS.HSA.CED.A.2

CCSS.HSF.IF.B.4

CCSS.HSF.IF.C.7

CCSS.HSS.ID.B.6

CCSS.HSS.ID.C.7

Find the line of best fit:

• y = 6.3x + 62

• y = 62x + 6.3

• y = 3x + 84

• y = 84x + 3

Tags

CCSS.HSS.ID.B.6

CCSS.HSS.ID.C.7

CCSS.HSS.ID.C.8

Find the line of best fit:

• y = -5.4x + 10840

• y = 10840x - 5.4

• y = 2001x + 39

• y = 39x + 2001

Tags

CCSS.HSA.CED.A.2

CCSS.HSS.ID.B.6

CCSS.HSS.ID.C.7

CCSS.HSS.ID.C.8