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| વર્ગ અંતરાલ | $0-4$ | $4-8$ | $8-12$ | $12-16$ |
| આવૃત્તિ | $4$ | $3$ | $2$ | $1$ |
| $x_i$ | $3$ | $4$ | $5$ | $8$ | $10$ | $11$ |
|---|---|---|---|---|---|---|
| $f_i$ | $\alpha+2$ | $(\alpha-1)^2$ | $4$ | $\alpha-1$ | $2$ | $\alpha$ |
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