Question

The number of hours for which students of a particular class watched television during holidays is shown through the given graph.
Answer the following.
(i) For how many hours did the maximum number of students watch TV?
(ii) How many students watched TV for less than $4$ hours?
(iii) How many students spent more than $5$ hours in watching TV?

Answer 1

(i) Maximum number of students : $32$
Watched TV for $(4-5)$ hours
(ii) Students who watched TV for less than $4$ hours belong to category : $1-2hrs,2-3hrs$ or $3-4hrs$.
Total number of student: $4+8+22$
$=34$
(iii) The students who watched TV for more than $5$ hours: Category - $5-6$ or $6-7$ hours
$\therefore$ Total number of students: $8+6=14$