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9 The number of claims observed during an exposure period for 1,100 policies are summarized as number of claims number of polices 100 10 0 3 A portfolio consists of four policies from these 1,ooo . one had no claims during the observed exposure pocied one had one claim, one had two Claim's , and the fourth had three claing using empricical Bayes semi - parametric estimate the number of claims for the portfolio during the next exposure period. Assume claim frequencies follow a poisson distribution