Review for Quiz tomorrow!!!

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

Tags

CCSS.8.EE.C.8C

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

Tags

CCSS.8.EE.C.8C

Find the equation of the line of best fit

for the given data.

• y = 163.41x+1.49

• y =- 163.41x+ 4.19

• y =- 4.19x+163.41

• y = 4.19x -163.41

What type of correlation does this scatter plot show?

• positive

• negative

• no correlation

Tags

CCSS.HSS.ID.B.5

What type of association does this graph have?

• positive

• negative

• none

Tags

CCSS.HSF-LE.A.1B

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

• A
• B
• C
• D

Tags

CCSS.8.EE.B.5

The graph above shows a line of best fit for data collected on the amount earned by waiters and waitresses last week in relation to the number of tables they served.  Using the red line, what is the equation of the line of best fit?

• y = (5/3) x + 375
• y = (1/3) x + 375

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

• y-intercept
• slope
• macaroni
• nothing

Tags

CCSS.8.EE.B.6

CCSS.8.F.A.3

What does 'b" represent in y=mx+b

• y-intercept
• macaroni
• nothing
• slope

Tags

CCSS.8.EE.B.6

CCSS.8.F.A.3

If m = 1/2 and b = -4, what is the correct equation in slope-intercept form?

• y=1/2x + 4
• y=1/2x - 4
• y=4x - .5
• y=4x + 1/2

Tags

CCSS.8.EE.B.6

CCSS.8.F.A.3