1) Ruladsnerg is interested in exploring the relationship between the weight of a vehicle and its fuel efficiency. The scatter plot shows the data as weight ( in pounds) and fuel efficiency ( in miles per gallon- mpg) for a random sample of 5 vehicles: 24.0 220 200 18.0 160- 14.0- 2000 2500 3000 3500 4000 weight a) Identify the explanatory and response variable and explain why. What are its units? b) What would be a good correlation coefficient for the scatter plot? Choose one: -0.97 or 1.2 or -1.4 or 0.03 c) If this can be classified as a linear relation, is it a positive relation or a Bdu

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1) Ruladsnerg is interested in exploring the relationship between the
weight of a vehicle and its fuel efficiency. The scatter plot shows the
data as weight ( in pounds) and fuel efficiency ( in miles per gallon-
mpg) for a random sample of 5 vehicles:
24.0
220
20.0-
18.0-
16.0
14.0-
2000
2500
3000
3500
4000
weight
a) Identify the explanatory and response variable and explain
why. What are its units?
b) What would be a good correlation coefficient for the scatter
plot? Choose one:
-0.97 or 1.2 or -1.4 or 0.03
c) If this can be classified as a linear relation, is it a positive relation or a
negative relation or is there no relation?
d) If the linear relation equation may be expressed as y= 32.55 -
0.00448x, what would you predict would be the fuel efficiency for a
car that weighs 2300 pounds?
e) Sensmirgrux's car weighs more than Lloifuie's car by 600 pounds.
How could you compare the fuel efficiencies of the two cars?
Transcribed Image Text:1) Ruladsnerg is interested in exploring the relationship between the weight of a vehicle and its fuel efficiency. The scatter plot shows the data as weight ( in pounds) and fuel efficiency ( in miles per gallon- mpg) for a random sample of 5 vehicles: 24.0 220 20.0- 18.0- 16.0 14.0- 2000 2500 3000 3500 4000 weight a) Identify the explanatory and response variable and explain why. What are its units? b) What would be a good correlation coefficient for the scatter plot? Choose one: -0.97 or 1.2 or -1.4 or 0.03 c) If this can be classified as a linear relation, is it a positive relation or a negative relation or is there no relation? d) If the linear relation equation may be expressed as y= 32.55 - 0.00448x, what would you predict would be the fuel efficiency for a car that weighs 2300 pounds? e) Sensmirgrux's car weighs more than Lloifuie's car by 600 pounds. How could you compare the fuel efficiencies of the two cars?
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