The mileage (km per litre) of 50 cars of the same model was tested by a manufacturer and details are tabulated as given belowMileage(kmL−1)10−1212−1414−1616−18Number of cars7121813Find the mean mileage.The manufacturer claimed that the mileage of the model was 16 kmL−1. Do you agree with this claim?

The mileage (km per litre) of 50 cars of the same model was tested by

1.	The mileage (km per litre) of 50 cars of the same model was tested by a manufacturer and details are tabulated as given belowMileage(kmL−1)10−1212−1414−1616−18Number of cars7121813Find the mean mileage.The manufacturer claimed that the mileage of the model was 16 kmL−1. Do you agree with this claim?
Answer» The mileage (km per litre) of 50 cars of the same model was tested by a manufacturer and details are tabulated as given below $\begin{matrix} M i l e a g e (k m L^{- 1}) & 10 - 12 & 12 - 14 & 14 - 16 & 16 - 18 N u m b e r o f c a r s & 7 & 12 & 18 & 13 \end{matrix}$ Find the mean mileage. The manufacturer claimed that the mileage of the model was $16 k m L^{- 1} .$ Do you agree with this claim?