Question

40 workers of factory A earned Rs 400 mean wages and 80 workers of factory B earned Rs 500 mean wages.Find out combined mean wages earned by the workers.


GIVE A DETAILED SOLUTION!!!​

Answer 1

Answer:

Step-by-step explanation:

i) xˉ=∑F∑Fx=41.7

ii) σ2=∑F−1∑F(xi−xˉ)2=391244.4=31.908

iii) σ=31.908=5.649

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