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| चर $(x)$ | $x_{1}$ | $x_{2}$ | $x_{3} \ldots x_{15}$ |
| आवृत्ति $(f)$ | $f_{1}$ | $f_{2}$ | $f_{3} \ldots f_{15}$ |
| ऊंचाई (सेमी में) | $70-75$ | $75-80$ | $80-85$ | $85-90$ | $90-95$ | $95-100$ | $100-105$ | $105-110$ | $110-115$ |
| बच्चों की संख्या | $3$ | $4$ | $7$ | $7$ | $15$ | $9$ | $6$ | $6$ | $3$ |
| $x_i$ | $0$ | $1$ | $5$ | $6$ | $10$ | $12$ | $17$ |
| $f_i$ | $3$ | $2$ | $3$ | $2$ | $6$ | $3$ | $3$ |
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