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JEE Mains · Maths · STD 11 - 13. statistics

જો માહિતી \(65,68,58,44,48,45,60, \alpha, \beta, 60\) જ્યાં \(\alpha>\beta\) નો મધ્યક અને વિચરણ અનુક્રમે \(56\) અને \(66.2\) હોય, તો \(\alpha^2+\beta^2 =\) ...........

  1. A \(6435\)
  2. B \(6798\)
  3. C \(6344\)
  4. D \(4312\)
Verified Solution

Answer & Solution

Correct Answer

(C) \(6344\)

Step-by-step Solution

Detailed explanation

\( \overline{\mathrm{x}}=56 \) \( \sigma^2=66.2 \) \( \Rightarrow \frac{\alpha^2+\beta^2+25678}{10}-(56)^2=66.2 \) \( \therefore \alpha^2+\beta^2=6344\)
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