The sum of lower limits of the median class and modal class is

Class	$0-5$	$5-10$	$10-15$	$15-20$	$20-25$
Frequency	$10$	$15$	$12$	$20$	$9$

Consider the following frequency distribution

The upper limit of the median class is

The modal class for the following distribution is:

Consider the data.

The difference of the upper limit of the median class and the lower limit of the modal class is

The times (in seconds) taken by $150$ athletes to run a $110 \mathrm{m}$ hurdle race are tabulated below :

The number of athletes who completed the race in less than $14.6 \mathrm{m}$ is

Consider the following distribution

the frequency of the class 30-40 is