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JEE Mains · Maths · STD 11 - 13. statistics

माना \(n\) प्रेक्षणों \(x_{i}, i=1,2, \ldots ., n\) का माध्य \(\bar{X}\) तथा \(\bar{X}\) के सापेक्ष उनका माध्य विचलन \(M.D.\) है। यदि प्रत्येक प्रेक्षण में \(5\) बढ़ा दिया जाए तो नया माध्य तथा नये माध्य के सापेक्ष उनका माध्य विचलन क्रमशः है 

  1. A \(\bar X,M.D.\)
  2. B \(\bar X + 5,M.D.\)
  3. C \(\bar X,M.D. + 5\)
  4. D \(\bar X + 5,M.D. + 5\)
Verified Solution

Answer & Solution

Correct Answer

(B) \(\bar X + 5,M.D.\)

Step-by-step Solution

Detailed explanation

Let \({{x_i}}\) be \(n\) observations, \(i = 1,2,...n\) Let \({\bar X}\) be the mean and \(M.D.\)be the mean deviation about \({\bar X}\). If each observation is incerased by \(5\) then new mean will be \(\bar X + 5\) and new \(M.D.\) about new mean wil be \(M.D.\) (…
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