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This paper deals with the problem of estimating the finite population meanwhen some information on two auxiliary attributes are available. It is shownthat the proposed estimator is more efficient than the usual mean estimator andother existing estimators. The study is also extended to two-phase sampling.The results have been illustrated numerically by taking empirical populationconsidered in the literature.

A Family Of Estimators Of Population Mean Using Information On Point Bi-Serial and Phi Correlation Coefficient