Question

40workers of factory A earned ₹400 mea. wages and 80 workers of factory B earned ₹500 mean wages find out combined mean wages earned by workers
​

Answer 1

Answer:

ANSWER

i) xˉ=∑F∑Fx=41.7

ii) σ2=∑F−1∑F(xi−xˉ)2=391244.4=31.908

iii) σ=31.908=5.649pls mark it as brainliest

Answer 2

${\huge{\green{\bf{\boxed{answer}}}}}$

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