Page 44 - Agricultural Census 2000 NWFP Vol II Part 1
P. 44

culminating        at    the     varied                not,  however,  be  presumed that
                   estim·ates.  In  addition  to  the                     all  the  national .· and  provincial
                   above,  another _ major  factor                        totals ·  are     subjected      to    a
                   seems  to  be  the  non-coverage                       substantial  rounding  effect.  As
                   of  migratory  herds  by  the                          in the large aggregates, vide the
                   Patwaris        in         Agricultural                law  of inertia  of large  numbers,
                   Censuses  whereas  the  Stock                          such  effects  cancel  · out  each
                   Assistants  take  due  care  for                       other  thus  curtailing  rounding
                   their  enumeration  in  Livestock                      effect .  at     the    national      or
                   Censuses.  It  may be  noted  that                     provincial levels to a minimum.
                   the       data  from  Agricultural
                   Census  are  primarily  meant  for
                   studying  relationships  between
                   livestock  population  of  different
                   categories · and  sizes  of  farms.
                   Therefore,            for     studying
                   livestock      population,         their,
                   products - and  for  developing
                   their     growth        rates,     data
                   provided  by _ Livestock Census
                   may  be  preferred  over  the
                   Agricultural Census data.


            7.     In  some  cases,  the  figures  in  a
                   row or a column may not add  up
                   exactly to their respective row or
                   column  total.  These  differences
                   are  due  to  rounding  which  was
                   unavoidable  in  view  of the_ fact
                   that  each  area  figure  was
                   collected  in  terms- of acres  and

                   kanals  and  converted  into acres
                  · and  hectares.  Further,  each
                   data  item was  multiplied with  its
                   raising  factor  worked  out  upto
                   three  places  of  decimal.  The
                   size  of rounding effect in  a total
                   normally  depends  upon  the
                   number         of      independently
                   worked         out       components
                   included  therein.  Consequently,
                   the  rounding effect will  be  larger
                   in  a  national  or  provincial  total
                   than  in  a  district total.  It  should



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