Question


Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
| Advertisement cost (thousand $Rs$. ) | $0 – 5$ | $5 – 15$ | $15 – 30$ | $30 – 40$ | $40 – 60$ | $60 -100$ | Total |
| No. of companies | $3$ | $8$ | $15$ | $10$ | $8$ | $6$ | $50$ |
| No. of units | Below $200$ | $200 – 300$ | $300 – 400$ | $400 – 500$ | $500$ and above |
| No. of families | $7$ | $13$ | $24$ | $16$ | $10$ |

| Mid values |
$25$
|
$105$
|
$230$
|
$400$
|
$650$
|
$900$
|
Total
|
|
Frequency
|
$10$
|
$30$
|
$40$
|
$60$
|
$80$
|
$30$
|
$250$
|
|
Class length
|
$50$
|
$110$
|
$140$
|
$200$
|
$300$
|
$200$
|