पहली 10 प्राकृत संख्याओं का माध्य विचलन क्या है?

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NDA-II 2024 (Maths) Official Paper (Held On: 01 Sept, 2024)
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  1. 2
  2. 2.5
  3. 3
  4. 3.5

Answer (Detailed Solution Below)

Option 2 : 2.5
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व्याख्या:

10 प्राकृत संख्याओं का माध्य

\(\overline{x} = \frac{1+2+3+4+....10}{10}\)

= \(\frac{10\times11}{2\times10}\) = 5.5

माध्य विचलन = \(\frac{|1- 5.5| + |2-5.5| + |3- 5.5| + ... + |10- 5.5|}{10} = 2.5\)

∴ विकल्प (b) सही है।

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