Question

Let l be the lower class limit of a class-interval in a frequency distribution and m be the mid point of the class. Then, the upper class limit of the class is

(a) m+$\frac{l+m}{2}$

(b) l+$\frac{m+l}{2}$

(c) 2m − 1

(d) m − 2l

Answer 1

Given that, the lower class limit of a class-interval is l and the mid-point of the class is m. Let u be the upper class limit of the class-interval. Therefore, we have

Thus the upper class limit of the class is. Hence, the correct choice is (c).