In this paper we have proposed an almost unbiased estimator using known valueof some population parameter(s) with known population proportion of anauxiliary variable. A class of estimators is defined which includes [1], [2]and [3] estimators. Under simple random sampling without replacement (SRSWOR)scheme the expressions for bias and mean square error (MSE) are derived.Numerical illustrations are given in support of the present study. Key words:Auxiliary information, proportion, bias, mean square error, unbiased estimator.
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