| वर्ग | $0-10$ | $10-20$ | $20-30$ | $30-40$ | $40-50$ | $50-60$ |
| बारंबारता | $5$ | $x$ | $20$ | $15$ | $y$ | $5$ |
| वर्ग | बारंबारता $(f)$ | संचयी बारंबारता $(cf)$ |
| $0-10$ | $5$ | $5$ |
| $10-20$ | $x$ | $5+x$ |
| $20-30$ | $20$ | $25+x$ |
| $30-40$ | $15$ | $40+x$ |
| $40-50$ | $y$ | $40+x+y$ |
| $50-60$ | $5$ | $45+x+y$ |
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| वर्ग | $4-7$ | $8-11$ | $12-15$ | $16-19$ |
| बारंबारता | $5$ | $4$ | $9$ | $10$ |
| वर्ग | $0-10$ | $10-20$ | $20-30$ | $30-40$ | $40-50$ | $50-60$ | $60-70$ |
| बारंबारता | $4$ | $7$ | $x$ | $18$ | $15$ | $8$ | $7$ |
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