2-Variable Stats Test Review (LT 3 & 4)

Describe the correlation in the graph shown.

• Strong Negative
• Strong Positive
• Weak Negative
• Weak Positive

Tags

CCSS.HSF-LE.A.1B

Describe the correlation in the graph shown.

• Strong Negative
• Strong Positive
• Weak Negative
• Weak Positive

Tags

CCSS.HSS.ID.B.6

CCSS.HSS.ID.C.8

What type of association does this graph have?

• positive
• negative
• none
• all of the above

Tags

CCSS.HSS.ID.B.6

CCSS.HSS.ID.C.8

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

• $600

• $200

• $1000

• $800

Tags

CCSS.6.EE.A.2

CCSS.6.EE.B.6

CCSS.6.EE.B.7

CCSS.6.NS.B.3

CCSS.6.RP.A.2

CCSS.6.RP.A.3

What letter do we use to represent correlation coefficient?

• c
• r
• p
• h

Tags

CCSS.HSS.ID.C.8

Is r = -0.87 strong, moderate, or weak?

• strong

• moderate

• weak

Tags

CCSS.HSS.ID.B.6

CCSS.HSS.ID.C.8

The residual plots from five different least squares regression lines are shown below. Which of the plots shows the strongest evidence that its regression line is an appropriate model for the data and is consistent with the assumptions required for inference for regression?

• 
• 
• 
• 
• 

Tags

CCSS.HSS.ID.A.3

The equation of the least squares regression line for a set of data is y=0.68+1.21x. What is the residual for the point (3, 4)?

• -0.31

• -0.68

• -1.52

• -3.63

• -4.31

Which of the following pairs of variables would be expected to have a negative association?

• GPA and height

• Number of chores and weekly allowance

• Number of hours spent studying and test grade

• Number of miles driven and amount of gas remaining in gas tank

• Age and IQ

Tags

CCSS.HSS.ID.B.6

CCSS.HSS.ID.C.9

A correlation shows that two things are

• related
• causing each other
• unrelated
• causation

Tags

CCSS.HSS.ID.C.8

CCSS.HSS.ID.C.9