The total revenue (in crores) of five leather goods companies are as two compani

Question

The total revenue (in crores) of five leather goods companies are as two companies have revenues between 10-20, one company has revenue between 20-30 and one company has revenue between 30-40 then the standard deviation is

Options:

A . 7.9

B . 4.9

C . 5.9

D . 6.9

Answer: Option B
Answer: (b).4.9

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