Scatter Plots

• no correlation
• undefined correlation
• positive correlation
• negative correlation

Tags

CCSS.HSS.ID.B.5

Which of the following situations describes a negative correlation?

• the amount of gas left in a car's tank and the amount used from it
• the number of gallons purchased and the amount paid for it
• the size of a car's gas tank and the number of gallons it holds
• the number of miles driven and the amount of gas used

Tags

CCSS.HSF-LE.A.1B

A positive correlation exists on a scatter plot when:

• y remains unchanged as x increases
• y changes randomly as x increases
• y decreases as x increases
• y increases as x increases

Tags

CCSS.HSF-LE.A.1B

• y = x
• y = 2/3x + 1
• y = 3/2x + 4
• y = 3/2x + 1

Tags

CCSS.8.EE.B.5

• This residual graph represents a linear fit.
• This graph represents a nonlinear fit.
• This residual graph represents no fit.

Tags

CCSS.HSS.ID.C.8

• This residual plot represents a linear fit.
• This residual plot represents a nonlinear fit.
• This residual plot represents no fit.

Tags

CCSS.HSS.ID.B.6

CCSS.HSS.ID.C.8

• The linear regression of these data would have a correlation coefficient of zero.
• The linear regression of these data would have a correlation coefficient of one.
• The linear regression of these data would have a correlation coefficient of 0.85.
• The linear regression of these data would have a correlation coefficient of -0.85.

Tags

CCSS.HSS.ID.C.8

• The linear regression of these data would have a correlation coefficient of zero.
• The linear regression of these data would have a correlation coefficient of +1.
• The linear regression of these data would have a correlation coefficient of -1.
• The linear regression of these data would have a correlation coefficient of -1.5.

Tags

CCSS.HSS.ID.C.8

All of the following choices are valid correlation coefficient or r-values except:

• 0.05
• -1.999
• -1.0
• 0.23

Tags

CCSS.HSS.ID.B.5

Given a correlation coefficient, r = -0.76, all of the following linear models would be possible except:

• y = -4x + 2
• g(x) = -2/3x + 0.5
• h = -1/10m - 6
• f(x) = 2x - 1.3

Tags

CCSS.HSF-LE.A.1B