Determine what the following key terms mean in context of the study?

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Question description

1.       Toyota would like to determine if the overall average (mean) gas mileage of its current portfolio of passenger cars.  To do so, they randomly select 200 vehicles within each of the four primary car classifications, for a total of 800 cars.  Each car was then driven for 300 miles to determine its average gas mileage while undergoing various driving conditions (city, freeway, etc.).

a. Parameter

b. Sample

c. Population

d. Statistic

e. variable

f. Data

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