1 - Arts and Science - University of Saskatchewan

Note that Y(t) has a negative binomial distribution with parameters r = k, p = e–λt. E[Y(t)] = keλt, V[Y(t)] = . With k = 2, λ = .1, E[Y(5)] = 3.2974, V[Y(5)] = 2.139. Let Y = # of left–turning vehicles arriving while the light is red. Then, Y is binomial with n = 5 and p = .2. Thus, P(Y ≤ 3) = .993. ................
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