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AP EAMCET202523 May 2025Morning ShiftMathematicsStatisticsActual

The mean and variance of the observations x ₁, x ₂, x ₃, , x ₁₅ are respectively 2 and 4. If the mean and variance of the observations y₁, y₂, , y₁₀ are respectively 2 and 5, then the variance of the observations x ₁, x ₂, x ₁₅, y ₁, y ₂, , y ₁₀ is

Options

  1. A6.5
  2. B5.3
  3. C3.4
  4. D4.4

Correct answer

D. 4.4

Step-by-step solution

NO SOLUTION

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