Answer:
a).
(I) Ratio , and
(II) Ratio
Step-by-step explanation:
By fuel economy (miles per gallon) of a used car, it relates distance traveled by a vehicle and the amount of fuel consumed which can be expressed in terms of volume of fuel to travel a distance, or the distance traveled per unit volume of fuel consumed.
And by Duration (in minutes) of a flight between two locations, it has to do with time which is usually in Hour(s) (HH), Minutes (MM), Seconds (SS) or Mili-second(s) MS.
Hence, both variables are ratio. That is, the quantitative (continuous) observations. This is because, they can both take a decimal value and has true zero value. Consequently, the first option is correct!
NB: If the observation cannot take a decimal point or value, we say it is interval and has no true zero value.
