On Estimation of Distribution Function Using Dual Auxiliary Information under Nonresponse Using Simple Random Sampling

Table 1

Estimators, variances, covariances, and correlation under nonresponse situations.

Estimator
Situation	=	I	II
	=
	=
	=
	=
Variance/covariance
	=
	=
	=
	=
	=
	=
	=
	=
	=
	=
Coefficient of correlation
	=
	=
	=
	=
	=
Coefficient of multiple determination
	=
	=