Question: (Q 7) Use the following Probability Distribution Table and Find the following (a) Find the probabilities of the following cases: (i) P(I = 3) =

(Q 7) Use the following Probability Distribution Table and Find the following (a) Find the probabilities of the following cases: (i) P(I = 3) = (ii) P( at least I = 3) = (ii) P(at most z = 2) = (b) Find the mean, variance and standard deviation of the random variable I. ANS. mean: ANS. Variance: ANS. Standards deviation: X P(X) 1 0.05 2 | 0.20 3 0.35 4 0.30 5 0.10

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