Aspire Faculty ID #18312 · Topic: AMU MCA 2017 · Just now
AMU MCA 2017

Coefficient of variation of two distributions are $60$ and $70$ and their standard deviations are $21$ and $16$ respectively. Then their AM’s are

Solution

$ C.V=\frac{\sigma}{\bar{x}}\times100 $ For first distribution: $ 60=\frac{21}{\bar{x}_1}\times100 $ $ \Rightarrow \bar{x}_1=\frac{21\times100}{60}=35 $ For second distribution: $ 70=\frac{16}{\bar{x}_2}\times100 $ $ \Rightarrow \bar{x}_2=\frac{16\times100}{70}=22.85 $
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