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| $x_i$ | $3$ | $6$ | $9$ | $12$ | $13$ | $15$ | $21$ | $22$ |
| $f_i$ | $3$ | $4$ | $5$ | $2$ | $4$ | $5$ | $4$ | $3$ |
| अंक | $0-10$ | $10-20$ | $20-30$ | $30-40$ | $40-50$ | $50-60$ |
| लड़कियों की संख्या | $6$ | $8$ | $14$ | $16$ | $4$ | $2$ |
| $\text{अंक}$ | $10$ | $15$ | $20$ | $25$ | $30$ |
| $\text{छात्रों की संख्या}$ | $2$ | $4$ | $6$ | $8$ | $5$ |
| $x_i$ | $2, 9, 8, 3, 5, 7$ |
|---|---|
| $f_i$ | $5, 3, 1, 6, 6, 1$ |
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