Question

Mode of combined distribution

Answer 1

l + h x f i - f 0 2f 1 - f 0 - f 2 .

Where

l = lower limit of the modal class,

h = size of the class interval (assuming all class sizes to be equal),

f1 = frequency of the modal class,

f0 = frequency of the class preceding the modal class,

f2 = frequency of the class succeeding the modal class