Delta and jackknife estimators with low bias for functions of binomial and multinomial parameters

An estimator is said to be of orders>0 if its bias has magnitude n−s, where n is the sample size. We give delta estimators and jackknife estimators of order four for smooth functions of the parameters of a multinomial distribution. An unbiased estimator is given for its density function. We also give a jackknife estimator of any order for smooth functions of the binomial parameter.

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