1.

Coefficient of ‘variation of distribution arc 60 and the standard deviat,on is 21. What is the arithmetic mean of the distribution?

Answer»

Given variation = 60 σ = 21, X̄ = ? 

Take coefficient of variation 

= σ/X x ω0

60 = 21/X x ω0 ⇒ X = 21/60 x 100 = 210/6

X̄ = Arithmatic mean = 35.



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