| $\text{माप}$ | $20$ | $21$ | $22$ | $23$ | $24$ |
| $\text{बारंबारता}$ | $6$ | $4$ | $5$ | $1$ | $4$ |
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| $x_i$ | $6$ | $12$ | $18$ | $24$ | $30$ | $36$ | $42$ |
|---|---|---|---|---|---|---|---|
| $f_i$ | $4$ | $7$ | $9$ | $18$ | $15$ | $10$ | $5$ |
| प्राप्त अंक | $0-20$ | $20-40$ | $40-60$ | $60-80$ | $80-100$ |
| छात्रों की संख्या | $10$ | $8$ | $12$ | $9$ | $11$ |
| $x_i$ | $2, 9, 8, 3, 5, 7$ |
|---|---|
| $f_i$ | $5, 3, 1, 6, 6, 1$ |
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