Regression Equations

What does the slope represent in this situation?

• The sloth runs 1 feet in 3 minutes
• The sloth runs 3 feet in 1 minute
• The sloth runs fast
• The sloth runs 6 feet in 1 minute

Tags

CCSS.HSF.IF.B.4

What does "m" represent in y = mx + b?

• y-intercept
• slope
• X-intercept

• nothing

Tags

CCSS.8.EE.B.6

CCSS.8.F.A.3

The scatter plot shows the relationship between the number of chapters and the total number of pages for several books.  Use the line of best fit 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.HSF.IF.C.7

CCSS.HSS.ID.C.7

Students in a group of chess teams submitted data about hours of team practice and the number of matches the team won.  The graph shows the results of the data.  Based on the linear regression equation y = 3.14x + 3.52, if a team practices 4.5 hours per week next year, which is the best prediction of the number of chess matches a team could expect to win?  

• about 24
• about 12
• about 8
• about 18

Tags

CCSS.HSF.IF.B.4

CCSS.HSF.IF.C.7

CCSS.HSA.REI.D.10

CCSS.HSS.ID.C.7

CCSS.HSA.CED.A.1

CCSS.HSA.SSE.A.1

How much does it cost to have your lawn mowed for 2 hours?

• $16
• $17
• $18
• $19

Tags

CCSS.HSF.LE.B.5

About how many male math teachers were there in 2006?

• 15
• 30
• 35
• 45

Tags

CCSS.HSF.IF.B.4

Which type of regression model does the scatter plot appear to show?

• linear

• exponential

• quadratic

Tags

CCSS.HSF.IF.B.4

CCSS.HSS.ID.B.6

CCSS.HSF.LE.A.1

Which scatter plot shows no relationship?

• Graph A
• Graph B
• Graph C
• Graph D

Tags

CCSS.8.EE.B.5

Describe the association of the scatter plot.

• Linear

• Exponential; Growth

• Exponential; Decay

• Linear; negative association

Tags

CCSS.HSF-LE.A.1B

What letter do we use to represent correlation coefficient?

• c
• r
• p
• h

Tags

CCSS.HSS.ID.B.6

CCSS.HSS.ID.C.8