scholarly journals Improved Ratio Type Estimator Using Two Auxiliary Variables under Second Order Approximation

2014 ◽  
Vol 2 (2) ◽  
pp. 179-190 ◽  
Author(s):  
Prayas Sharma ◽  
Rajesh Singh
1995 ◽  
Vol 22 (1) ◽  
pp. 49-64
Author(s):  
E.T. Huang ◽  
Yuh-Lin Hwang

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