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JEE Mains · Maths · STD 11 - 13. statistics

\(6\) અવલોકનો \(a\), \(b,\) \(68,\) \(44,\) \(48,\) \(60\) ના મધ્યક અને વિચરણ અનુક્રમે \(55\) અને \(194\) છે. જો \(a > b,\) તો \(a +\) \(3 b =\) ...........

  1. A \(200\)
  2. B \(190\)
  3. C \(180\)
  4. D \(210\)
Verified Solution

Answer & Solution

Correct Answer

(C) \(180\)

Step-by-step Solution

Detailed explanation

\(\mathrm{a}, \mathrm{b}, 68,44,48,60\) Mean \(=55\) \(a>b\) Variance \(=194\) \(a+3 b\) \(\frac{a+b+68+44+48+60}{6}=55\) \(\Rightarrow 220+a+b=330\) \(\therefore a+b=110 \ldots . .(1)\) Also,…
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