| વર્ગ લંબાઈ ($C$.$I$.) | $0$ - $6$ | $6$ - $12$ | $12$ - $18$ |
| આવૃત્તિ (f_i) | $2$ | $4$ | $6$ |
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| $x_i$ | $4$ | $8$ | $11$ | $17$ | $20$ | $24$ | $32$ |
|---|---|---|---|---|---|---|---|
| $f_i$ | $3$ | $5$ | $9$ | $5$ | $4$ | $3$ | $1$ |
| $y_i$ | $10$ | $18$ | $24$ | $36$ | $42$ | $50$ | $66$ |
|---|---|---|---|---|---|---|---|
| $f_i$ | $3$ | $5$ | $9$ | $5$ | $4$ | $3$ | $1$ |
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