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| अंक $(x_{i})$ | $15$ | $22$ | $28$ | $31$ | $35$ | $40$ | $44$ | $46$ |
| छात्रों की संख्या $(f_{i})$ | $2$ | $3$ | $5$ | $6$ | $6$ | $4$ | $3$ | $1$ |
| वर्ग अंतराल $(km/h)$ | आवृत्ति |
| $30-40$ | $3$ |
| $40-50$ | $6$ |
| $50-60$ | $25$ |
| $60-70$ | $65$ |
| $70-80$ | $50$ |
| $80-90$ | $28$ |
| $90-100$ | $14$ |
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