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Mathematics, 19.12.2019 20:31 yangyang7
If 75% of men spend more than $75 monthly on clothes, while 15% pay more than $150, what is the mean monthly expense on clothes and what is the standard deviation?
\mu=84.33, \sigma=13.44
\mu=104.39, \sigma=43.86
\mu=118.42, \sigma=56.16
\mu=139.43, \sigma=83.36
\mu=54.43, \sigma=13.22
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If 75% of men spend more than $75 monthly on clothes, while 15% pay more than $150, what is the mean...
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