| વર્ગ | $15-35$ | $35-55$ | $55-75$ | $75-95$ | $95-115$ |
| આવૃત્તિ | $17$ | $f_1$ | $32$ | $f_2$ | $19$ |
| વર્ગ | આવૃત્તિ $(f_i)$ | મધ્યકિંમત $(x_i)$ | $u_i = \frac{x_i - 65}{20}$ | $f_i u_i$ |
| $15-35$ | $17$ | $25$ | $-2$ | $-34$ |
| $35-55$ | $f_1$ | $45$ | $-1$ | $-f_1$ |
| $55-75$ | $32$ | $65$ | $0$ | $0$ |
| $75-95$ | $f_2$ | $85$ | $1$ | $f_2$ |
| $95-115$ | $19$ | $105$ | $2$ | $38$ |
| કુલ | $100$ | - | - | $f_2 - f_1 + 4$ |
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| વર્ગ | $0-10$ | $10-20$ | $20-30$ | $30-40$ | $40-50$ | $50-60$ | $60-70$ | $70-80$ |
| આવૃત્તિ | $2$ | $4$ | $10$ | $20$ | $18$ | $20$ | $16$ | $10$ |
| ઉંમર (વર્ષ) | $30$ | $40$ | $50$ | $60$ | $70$ | $80$ |
| સંચયી આવૃત્તિ | $100$ | $220$ | $350$ | $750$ | $950$ | $1000$ |
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