| वर्ग अंतराल | $0-5$ | $5-10$ | $10-15$ | $15-20$ | $20-25$ |
| बारंबारता | $4$ | $1$ | $10$ | $3$ | $2$ |
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| $x_i$ | $92$ | $93$ | $97$ | $98$ | $102$ | $104$ | $109$ |
| $f_i$ | $3$ | $2$ | $3$ | $2$ | $6$ | $3$ | $3$ |
| $x_i$ | $5$ | $7$ | $9$ | $11$ |
|---|---|---|---|---|
| $f_i$ | $3$ | $2$ | $1$ | $2$ |
| $x_{i}$ | $1$ | $2$ | $3$ | $4$ | $5$ | $6$ | $7$ | $8$ | $9$ | $10$ |
| $f_{i}$ | $1$ | $2$ | $3$ | $4$ | $5$ | $6$ | $7$ | $8$ | $9$ | $10$ |
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