What is the average miles per gallon (mpg) for all new cars? Using Consumer Reports, a random sample of 35 new cars gave an average of 21.1 mpg.

Question

(a) Identify the variable.
new cars
total miles
all cars
miles per gallon

(b) Is the variable quantitative or qualitative?
quantitative
both quantitative and qualitative
qualitative

(c) What is the implied population?
all cars with average miles per gallon
all cars
the 35 new cars that were examined
all new cars