AP Statistics Unit 9

Quiz
•
Mathematics
•
12th Grade
•
Hard
Anthony Clark
FREE Resource
10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
1 min • 5 pts
A
B
C
D
E
2.
MULTIPLE CHOICE QUESTION
1 min • 5 pts
A
B
C
D
E
3.
MULTIPLE CHOICE QUESTION
1 min • 5 pts
Which of the following is the regression equation for this data?
Price^ = 87.3180 - 19.4(Area)
Price^ = -19.4 + 0.1297(Area)
Area^ = -19.4 + 0.1297(Price)
Price^ = 0.1297 - 19.4(Area)
4.
MULTIPLE CHOICE QUESTION
1 min • 5 pts
Which of these is the best interpretation of the number 0.1297?
For each additional square foot of area, the price is predicted to increase by about $0.1297
A house which has 0 square feet is predicted to cost about $0.1297
For each additional square foot, the price of the house is predicted to increase about $12.97.
For each additional square foot of area, the price of the house is predicted to increase 129.70.
5.
MULTIPLE CHOICE QUESTION
1 min • 5 pts
Which of these is the best interpretation of the number 87.3180?
The average distance between the price of a house and the mean price of all of the houses is about $87,318.
Predictions of price based on area using this regression model will be off by about $87,318 on average.
The sum of the squared deviations for each house is about $87,318.
There were 87.318 houses in the sample.
6.
MULTIPLE CHOICE QUESTION
1 min • 5 pts
Which of the following points has the greatest influence on the strength of the correlation coefficient?
A
B
C
D
E
7.
MULTIPLE CHOICE QUESTION
1 min • 5 pts
Which of the graphs would have a correlation coefficient of r = 0.69 ?
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