Question

In order to determine the expected mileage for a particular car, an automobile manufacturer conducts a factory test on five of these cars.Suppose the car with $23.6$ miles per gallon had a faulty fuel injection system and obtained a mileage of $12.8$ miles per gallon instead. What would have been the mean mileage? What would have been the median mileage?

Answer 1

Given that Instead of $23.6$ , we have $12.8$
The mean mileage is $\frac{(25.3+12.8+24.8+23.0+24.3)}{5}=\frac{110.2}{5}=22.04$
Arrange given set in ascending order, we get {$12.8,23,24.3,24.8,25.3$}
Therefore the median is $24.3$.