| वर्ग | $30-40$ | $40-50$ | $50-60$ | $60-70$ | $70-80$ | $80-90$ | $90-100$ |
| बारंबारता $({f_i})$ | $3$ | $7$ | $12$ | $15$ | $8$ | $3$ | $2$ |
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| वर्ग अंतराल | $0$-$5$ | $5$-$10$ | $10$-$15$ | $15$-$20$ | $20$-$25$ |
|---|---|---|---|---|---|
| आवृत्ति | $4$ | $1$ | $10$ | $3$ | $2$ |
| छात्र | अंक |
| रवि | $25, 50, 45, 30, 70, 42, 36, 48, 35, 60$ |
| हसीना | $10, 70, 50, 20, 95, 55, 42, 60, 48, 80$ |
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