Question

For a group of 50 male workers, the mean and standard deviation of their monthly

wages are Rs. 6,300 and Rs. 900, respectively. For a group of 40 female workers,

these are Rs. 5,400 and Rs. 600, respectively. Find the standard deviation of

monthly wages for the combined group of workers​

Answer 1

Answer:

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Answer 2

Answer:

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Explanation:

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