Explainer: Poisson Distribution- E(X
2
)
Show that Variance of a Poisson Distribution = λ
E(X
2
) = λ - λ
2
E(XX)
use j = i-1 and the Maclaurin's series
Var(X) = E(X
2
) - E(X)
2
= λ
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Tutoring
https://www.tutorhunt.com/users/3207830548286/
Var(X) = E(X2) - E(X)2 = λ
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Tutoring https://www.tutorhunt.com/users/3207830548286/
