( using Gamma integral for positive integer n , x e
Chapter 8: Chapter 11 · MATHEMATICS-VOLUME 2 · EN medium
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( using Gamma integral for positive integer n , x e = λ Variance : By definition, E X = x f x dx = (using Gamma integral for positive integer) (We can also use integration by parts or Bernoulli’s formula) (We can also use integration by parts or Bernoulli’s formula) Therefore Var X ) = E X E X − ( = Hence the mean and variance are respectively λ and λ .
📖 Class 12 Mathematics English Volume 2 2025 Edition www.tntextbooks.in · Page 213
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( using Gamma integral for positive integer n , x e = λ Variance : By definition, E X = x f x dx = (using Gamma integral for positive integer) (We can also use integration by parts or Bernoulli’s formula) (We can also use integration by parts or Bernoulli’s formula) Therefore Var X ) = E X E X − ( = Hence the mean and variance are respectively λ and λ .
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