- #1
Applejacks01
- 26
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Hello,
so suppose we have B(n,p), where n is discretely uniformly distributed on the integers of the interval (1,5)
Is the expected value 3p, and is the variance 3p-p^2
?
I arrived at those answers by treating n as another variable, so np/5 summed over all n is 3p, and similar logic for E(x^2) yields the variance.
Also when I use the equation E(V(Y/n)) + V(E(Y/n)) I get the same variance.
However this will give a non-zero variance for p =1, which makes NO sense.
Please advise.
Thank you very much
so suppose we have B(n,p), where n is discretely uniformly distributed on the integers of the interval (1,5)
Is the expected value 3p, and is the variance 3p-p^2
?
I arrived at those answers by treating n as another variable, so np/5 summed over all n is 3p, and similar logic for E(x^2) yields the variance.
Also when I use the equation E(V(Y/n)) + V(E(Y/n)) I get the same variance.
However this will give a non-zero variance for p =1, which makes NO sense.
Please advise.
Thank you very much
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