Problem

Consider n independent trials, the ith of which results in a success with probability Pi.(...

Consider n independent trials, the ith of which results in a success with probability Pi.

(a) Compute the expected number of successes in the n trials-call it μ.


(b) For a fixed value of μ, what choice of P1,..., Pn maximizes the variance of the number of successes?


(c) What choice minimizes the variance?

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