Question

Find the mode of the following distribution:

Answer 1

Here, the maximum number of students i.e. 71 have got marks in the interval 60 – 70.

So, the modal class is 60 – 70.

Now, modal class = 60 – 70, lower limit (l) of modal class = 60, class size(h) = 10

frequency (f₁) of the modal class = 71

frequency (f₀) of class preceding the modal class = 31

frequency (f₂) of class succeeding the modal class = 52

Now, let us substitute these values in the formula