Let m be the midpoint and u be the upper class limit of a class in a continuous distribution. The lower class limit of the class is

Question

Philoid · Accepted Answer

We know that,

Mid-point = 1/2 (upper class limit + lower class limit)

m = 1/2 (upper class limit + lower class limit)

upper class limit = u (given)

u + lower class limit = 2m

lower class limit = 2m – u .