Chapter 2 Review #3

Which is the explanatory variable: Height of a plant/the number of days since it was planted

• Height of the plant

• Days since it was planted

• Neither are appropriate

Which is the explanatory variable: # of combos purchased at McDonalds/# of pets in a household

• Number of combos puchased

• Number of pets in the household

• Neither are appropriate

Tags

CCSS.HSS.ID.C.9

Which is the response variable: Time spent on a treadmill and number of calories burned

• Time spent on the treadmill

• Number of calories burned

• Neither are appropriate

Tags

CCSS.HSS.IC.B.5

Which is the Explanatory Variable: The amount of time that I drive a rented truck and the total cost.

• The time driving the truck

• The total cost of the truck

• Neither are appropriate

Tags

CCSS.HSS.ID.B.6

Charlie paid for the truck, he drives it x miles. y=0.5x+10. What does the slope of the graph of this equation represent

• The daily fee for the moving truck

• The per-mile fee for the moving truck

• How much Charlie paid for the truck

• The number of miles he drove

Tags

CCSS.HSS.ID.C.7

The equation c = 0.20t + 3.50 shows the relationship between the cost to rent and time rented. What does the slope mean?

• For $1.00, you can rent a kayak for 20 minutes.

• You have to pay $0.20 up front before using the kayak at all.

• Every .2 minutes, you have to pay $1.00.

• It costs $0.20 per minute to rent the kayak.

Tags

CCSS.HSS.ID.C.7

How would you describe a correlation with r = -.16?

• Strong Positive Correlation

• Weak Positive correlation

• Weak Negative Correlation

• Strong Negative Correlation

Tags

CCSS.HSS.ID.B.6

CCSS.HSS.ID.C.8

How would you describe an association with r = .91 ?

• Strong Positive Correlation

• Weak Positive correlation

• Weak Negative Correlation

• Strong Negative Correlation

• Not a possible correlation

Tags

CCSS.HSS.ID.B.6

CCSS.HSS.ID.C.8

How would you describe an association with r = -.76 ?

• Strong Positive Correlation

• Weak Positive correlation

• Weak Negative Correlation

• Strong Negative Correlation

• Not a possible correlation

Tags

CCSS.HSS.ID.B.6

CCSS.HSS.ID.C.8

How would you describe an association with r = 1.72 ?

• Strong Positive Correlation

• Weak Positive correlation

• Weak Negative Correlation

• Strong Negative Correlation

• Not a possible correlation

Tags

CCSS.HSS.ID.B.6

CCSS.HSS.ID.C.8