Pankaj Chauhan

发表

Improved exponential estimator for population variance using two auxiliary variables

Florentin Smarandache, Nirmala Sawan, Rajesh Singh, 2009, 0902.0126.

A General Family of Estimators for Estimating Population Mean Using Known Value of Some Population Parameter(s)

Florentin Smarandache, Nirmala Sawan, M. Khoshnevisan, 2007, math/0701243.

ALMOST UNBIASED RATIO AND PRODUCT TYPE ESTIMATOR OF FINITE POPULATION VARIANCE USING THE KNOWLEDGE OF KURTOSIS OF AN AUXILIARY VARIABLE IN SAMPLE SURVEYS

Florentin Smarandache, Nirmala Sawan, Rajesh Singh, 2010 .