अध्ययन के उद्देश्य से अवलोकनों का माध्य 148 ग्राम है और मानक विचलन 17.4 ग्राम है। विचरण का गुणांक लगभग किसके बराबर है:

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SSC CGL JSO Tier-II, 2018 (Statistics) Official Paper-III (Held On: 14 Sept, 2019)
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  1. 0.11
  2. 0.14
  3. 0.12
  4. 0.13

Answer (Detailed Solution Below)

Option 3 : 0.12
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Detailed Solution

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अवधारणा:

विचरण का गुणांक = \(\rm \frac{\sigma _{x}}{\bar{x}}\)

जहाँ, 

\(\rm \sigma _{x}\) = मानक विचलन

\(\rm \bar{x}\) = अवलोकनों का माध्य

गणना:

विचरण का गुणांक = \(\rm \frac{17.4}{148}\)

∴ विचरण का गुणांक 0.12 हैI

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