KCET · Maths · Linear Programming
If the coefficient of variation and standard deviation are \( 60 \) and \( 21 \) respectively, the arithmetic
mean of distribution is
- A \( 30 \)
- B \( 21 \)
- C \( 60 \)
- D \( 35 \)
Answer & Solution
Correct Answer
(D) \( 35 \)
Step-by-step Solution
Detailed explanation
We know that, coefficient of variation \(=\frac{\sigma}{\mu} \times 100 \%\)
\(\Rightarrow 60=\frac{21}{\mu} \times 100\), substitute the given values
\(\therefore \mu=\frac{2100}{60}=35\)
\(\Rightarrow 60=\frac{21}{\mu} \times 100\), substitute the given values
\(\therefore \mu=\frac{2100}{60}=35\)
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