The mileage (km per liter) of 50 cars of the same model was tested by a manufacturer and details are tabulated as given below


Find the mean mileage.


The manufacturer claimed that the mileage of the model was 16Km L-1


Do you agree with this claim?



Here,


and




Hence, mean mileage is 14.48 km/h


No, the manufacturer is claiming mileage 1.52 km/h more than average mileage.


8
1