जर 0, 1, 2, 3 ______ 9 चे प्रमाण विचलन K असेल, तर 10, 11, 12, 13 _____ 19 चे प्रमाण विचलन किती असेल?

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RRC Group D Previous Paper 10 (Held On: 28 Sep 2018 Shift 1)
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  1. K + 1
  2. K
  3. K + 4
  4. K + 8

Answer (Detailed Solution Below)

Option 2 : K
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सूत्र​∶ σ2 = ∑(xi – x)2/n

प्रत्येक संख्या 10 ने वाढल्याने, प्रमाण विचलन बदलणार नाही कारण (xi - x) समान राहते.

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