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| वर्ग | $4-8$ | $8-12$ | $12-16$ | $16-20$ |
| बारंबारता | $3$ | $\lambda$ | $4$ | $7$ |
| \text{पैरामीटर} | \text{फर्म } $A$ \text{ और फर्म } $B$ |
| \text{वेतन भोगियों की संख्या} | $A: 586, B: 648$ |
| \text{मासिक वेतन का माध्य} | $Rs. 5253$ |
| \text{वेतन का प्रसरण} | $A: 100, B: 121$ |
| चर $x$ | $1$ | $2$ | $3$ | $4$ | $5$ |
| बारंबारता $f$ | $4$ | $5$ | $y$ | $1$ | $2$ |
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