linear regression practice

A person travels by car.  They record their miles driven in a data table.  Calculate the linear regression equation of this data.

• y = 61.93x - 1.79
• y = -1.79x + 61.93
• y = 0.016x + 0.03
• y = 0.03x + 0.016

A restaurant sells pizza for the prices in the data table. Calculate the linear regression equation of the data.

• y = 1.5x + 12

• y = 12x + 1.5

• y = 0.67x - 8

• y = -8x + 0.67

Tags

CCSS.8.EE.C.8C

Write the equation for the linear regression shown.

Tags

CCSS.8.F.A.3

The table shows the relation between the number of hours worked babysitting and the total price for the services. Using the data shown above, which equation could be used to predict the total price for babysitting services?

• c = h +39

• c = 11h - 1

• c = 8h + 11

• c = 10h + 3

Tags

CCSS.8.F.B.4

CCSS.HSF.LE.A.2

What kind of correlation?

• Positive
• Negative
• No

Tags

CCSS.HSS.ID.B.5

What kind of correlation?

• Positive
• Negative
• No

Tags

CCSS.HSS.ID.B.5

The scatter plot below shows the number of books read by students in Mrs. Hall’s English class and their final grades. Which statement represents the best description about the line of best fit?

• The more books students read, the lower their English grade.

• The more books students read, the higher their English grade.

• The fewer books students read, the higher their English grade.

• No relationship exists between the number of books students read and their English grades.

Tags

CCSS.HSF-LE.A.1B

A restaurant sells pizza for the prices in the data table.  Calculate the linear regression equation of the data.

• y = 1.5x + 12
• y = 12x + 1.5
• y = 0.67x - 8
• y = -8x + 0.67

Tags

CCSS.8.EE.C.8C

If Joe worked 30 hours, how much is he expected to earn?

• $600
• $200
• $1000
• $800

Tags

CCSS.7.RP.A.2D

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.8.EE.B.5