| $x_i$ | $2, 9, 8, 3, 5, 7$ |
|---|---|
| $f_i$ | $5, 3, 1, 6, 6, 1$ |
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| ऊंचाई ($cm$ में) | लड़कों की संख्या |
| $95-105$ | $9$ |
| $105-115$ | $13$ |
| $115-125$ | $26$ |
| $125-135$ | $30$ |
| $135-145$ | $12$ |
| $145-155$ | $10$ |
| $x$ | $10$ | $11$ | $12$ | $13$ |
|---|---|---|---|---|
| $f$ | $6$ | $12$ | $18$ | $12$ |
| $x_i$ | $5, 15, 25, 35, 45$ |
| $f_i$ | $8, 48, 56, 32, 16$ |
| $x_i$ | $2$ | $3$ | $5$ | $7$ | $9$ |
|---|---|---|---|---|---|
| $f_i$ | $8$ | $6$ | $4$ | $2$ | $1$ |
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