The distribution below gives the marks obtained by 80 students on a test:

| Marks | Less than $10$ | Less than $20$ | Less than $30$ | Less than $40$ | Less than $50$ | Less than $60$ | Less than $75

Question

The distribution below gives the marks obtained by 80 students on a test:

| Marks | Less than $10$ | Less than $20$ | Less than $30$ | Less than $40$ | Less than $50$ | Less than $60$ | Less than $75$ | Less than $80$ |
|-------|---------------|---------------|---------------|---------------|---------------|---------------|---------------|---------------|
| Number of Students | $3$ | $12$ | $27$ | $57$ | $75$ | $80$ | | |

The modal class of this distribution is:
(A) $10$-$20$
(B) $20$-$30$
(C) $30$-$40$
(D) $50$-$60$

Accepted Answer

Step 1: (C) $30$-$40$

Question

Solution