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Using the equation of variance Var[X] = E[X^2] - E[X]^2 -> equation(1)
For a Poisson distribution, Var[X] = E[X] -> equation(2)
we can rewrite equation(1) as
E[X^2] = Var[X] + E[X]^2
or E[X^2] = E[X] + E[X]^2 -> From equation(2)
On substituting these values in the cost equation we get 226.176 and 286.100
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Poisson Distribution #2
You are viewing a single comment's thread. Return to all comments →
Using the equation of variance Var[X] = E[X^2] - E[X]^2 -> equation(1)
For a Poisson distribution, Var[X] = E[X] -> equation(2)
we can rewrite equation(1) as
E[X^2] = Var[X] + E[X]^2
or E[X^2] = E[X] + E[X]^2 -> From equation(2)
On substituting these values in the cost equation we get 226.176 and 286.100