Question

Find the arithmetic mean.

Wages (Rs) : 110 150 200 250 300 350

No. of workers: 4 8 10 20 15 3

Answer 1

Answer:

dont know about this question

Answer 2

Solution :-

wages(Rs.) Fi Xi FiXi

100-150 4 125 500

150-200 8 175 1400

200-250 10 225 2250

250-300 20 275 5500

300-350 15 325 4875

350-400 3 375 1125

⅀Fi = 60 ⅀FiXi = 15650

we know that,

• Mean = ⅀FiXi / ⅀Fi .

so,

→ Mean = 15650 / 60

→ Mean = Rs.260.84 (Ans.)

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