00345nam a2200133 a 450000500170000002000150001708200150003210000170004724500360006425000110010026000570011130000280016863000150019620251203091512.0  a8120710568  a519.5bGRE  aGrewal, P.S.  aMethods of statistical analysis  a2nd ed  aNew DelhibSterling publishers private Limitedc1990  axvi,1303 p.c22 cm.bPB  aStatistics