పంపిణీ మధ్య వ్యత్యాసం 81 మరియు గుణకం వ్యత్యాసం 30%. అయితే సగటు ఎంత?

  1. 25
  2. 30
  3. 35
  4. 40

Answer (Detailed Solution Below)

Option 2 : 30
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Detailed Solution

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మనకు తెలుసు,

\(S.D = \sqrt {Variance} = \sqrt {81} = 9\)

మరియు,

గుణకం యొక్క వ్యత్యాసం \(= \frac{{S.D}}{{Mean}} \times 100\) 

\(30 = \frac{9}{{Mean}} \times 100\)

⇒ సగటు = 30
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