Q. If coefficient of variation is $60$ and standard deviation is $24$ , then Arithmetic mean is

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A

$40$

40%

B

$\frac{7}{20}$

20%

C

$\frac{20}{7}$

40%

D

$\frac{1}{40}$

0%

Solution:

$\frac{σ}{x ˉ} \times 100 = C . V$