Find the mode of the following distribution:

Here, the maximum number of persons i.e. 30 have income in the interval 300 – 400.

So, the modal class is 300 – 400.

lower limit (l) of modal class = 300,

class size(h) = 100

frequency (f₁) of the modal class = 30

frequency (f₀) of class preceding the modal class = 18

frequency (f₂) of class succeeding the modal class = 20

Now, let us substitute these values in the formula

= 300 + 54.54

= Rs. 354.54