Question

The fuel efficiency in miles per gallon of 12 utility trucks was measured. The results are 22, 25, 23, 27, 15, 24, 24, 32, 23, 22, 25, and 22. What is the average fuel efficiency of these trucks?

a) 25
b) 24
c) 26
d) 23

Answer 1

To find the average fuel efficiency of the utility trucks, add all the individual efficiencies together and then divide by the number of trucks. This calculation results in an average fuel efficiency of 24 miles per gallon.

Step-by-step explanation:

The average fuel efficiency of the trucks is calculated by summing up all the measured fuel efficiencies and then dividing by the number of trucks. This gives us the mean fuel efficiency.

1. Add up all the fuel efficiencies: 22 + 25 + 23 + 27 + 15 + 24 + 24 + 32 + 23 + 22 + 25 + 22 = 284.

Divide the total by the number of trucks: 284 / 12 = 23.6666667.

Round to the nearest whole number, which gives us 24.

Therefore, the average fuel efficiency of these 12 utility trucks is 24 miles per gallon.