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Questions › Statistics › Joint distributions, covariance and correlation

Joint distributions, covariance and correlation: previous year questions

Asked 1 times in 1 exam across 1 year. Newest first.

Practise Joint distributions, covariance and correlation, easy to hard →

  1. IIT JAM 2021 Q47Let X₁ ~ N(μ₁, σ₁²) and X₂ ~ N(μ₂, σ₂²) with μ₁ = 2, μ₂ = 3, σ₁² = 4, σ₂² = 9 and correlation coefficient 0.5. The variance of (X₁ + X₂) is _ (in…