For the following distribution:
The sum of lower limits of median class and modal class is\

Question

For the following distribution: 
The sum of lower limits of median class and modal class is\

Professor PC Thomas Classes · Answer

(b): We have the following table, \Now, $N=66 \Rightarrow \frac{N}{2}=\frac{66}{2}=33$, which lies in class interval 10-15.\ $	herefore \quad 10-15$ is the median class.\ Also, highest frequency is 20 , which lies in the class interval 15-20.\ $	herefore \quad 15-20$ is the modal class.\ Sum of lower limits of median class and modal class = 10 + 15 = 25\