The mean salary for a group of 40 females workers is 5200 per month and that for a group of 60 female workers is 6800 per month. What is the combined mean salary
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Step-by-step explanation:
total salary of 40 female=5200×40=208000
total salary of 60 female=6800×60=408000
combined salary=616000
combined mean salary=616000/100=6160
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