| $X$ | $5$ | $6$ | $7$ | $8$ | $10$ |
| आवृत्ति | $3$ | $7$ | $4$ | $2$ | $4$ |
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| वर्ग अंतराल | $0$-$4$ | $4$-$8$ | $8$-$12$ | $12$-$16$ | $16$-$20$ |
| बारंबारता | $2$ | $4$ | $6$ | $3$ | $1$ |
| $x_{i}$ | $1$ | $2$ | $3$ | $4$ | $5$ | $6$ | $7$ | $8$ | $9$ | $10$ |
| $f_{i}$ | $1$ | $2$ | $3$ | $4$ | $5$ | $6$ | $7$ | $8$ | $9$ | $10$ |
| विषय | गणित,भौतिकी,रसायन विज्ञान |
| माध्य | $42, 32, 40.9$ |
| मानक विचलन | $12, 15, 20$ |
| वर्ग अंतराल | आवृत्ति |
|---|---|
| $0 - 6$ | $10$ |
| $6 - 12$ | $8$ |
| $12 - 18$ | $6$ |
| $18 - 24$ | $4$ |
| $24 - 30$ | $2$ |
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