TY  - BOOK
AU  - Das, RK
AU  - Nagar, A L
TI  - Basic statistics
SN  - 0195615549
U1  - 519 
PY  - 1990///
CY  - New Delhi
PB  - Oxford University Press
KW  - Central tendency
KW  - Indexnumbers
KW  - Sampling distribution
ER  -