A natural estimator, , K � is showed to estimate the number to clusters, K, that there are in a heterogeneous population. A limit law is rigorously proved for . K � The proof utilizes a method of Holst (1979). An estimator, , K � * 1 is proposed via the asymptotic distribution of . K � The performance of the estimator * 1 K � is investigated by means of Monte Carlo experiments.
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