(Answered) Math1550h assignment question experience shows

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Experience shows that X, the number of customers entering a post office during any period of time t, is a random variable the probability mass function of which is of the form

p(i) = k (2t)ⁱ/i! ; i = 0; 1; 2; : : :

(a) Determine the value of k.

(b) Compute P(X < 4) and P(X > 1).

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