An automobile engineer calculates the average fuel efficiency for a specific make
of cars. The cars have a median fuel efficiency of 31 miles per gallon (mpg) with a
standard deviation of 3 mpg.
He is not sure if the data are normally distributed.
What would be signs that the data are normally distributed?
Select all that apply.
The mean fuel efficiency is about 31 mpg.
95% of the fuel efficiency measurements are between 25 and 37 mpg.
10% of the fuel efficiency measurements are between 28 and 34 mpg.
The mode of fuel efficiency is about 50 mpg.