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Limitations of Statistics

LIMITATIONS OF STATISTICS

Despite  its  power,  essential  use  fullness  and  universal  applicability  statistics  has  its  own limitation and imperfections, which are as under;

1. Statistics  does  not  study  individual:

Individuals  facts  and  figures  are  of  importance  to  individuals  only  statistics  does  not  deals  with them  .It  deals  with  mass  phenomena  and  therefore,  throws  light  on  the  whole  of  a  given  group. Statistical  deals  with  aggregates,  though  for  purpose  of  analysis  these  aggregates  are  very  often reduced  to  single  figures  like  average,  percentages.

2.  Statistics  does  not  study  qualitative  phenomena:

The  statically  methods  can  be  applied  to  the  study  of  those  problems  only  that  are  capable  of quantitative  expression,  i.e.,  it  is  not  applicable  to  the  study  of  those  facts  that  are  not quantitatively  measurable,  for  example  attributes  like  honesty,  healthy  skills  etc  be  measured weight in figures.

3.  Statistics  data  do  not  reveal  the  story:

Statistical  data  collected  relating the  problem  under  study  do  not  reveal  the  entire  story  of  the problems.  This  is  because  many  problems  are  affected  by  factors  which  are  in  capable  of statistical  analysis.  Therefore  it.  Is  not  always  possible  to  examine  a  problems  I  all  its manifestations  only  by  the  statically  of  a  country’s  culture,  philosophy  or  religion. “It  is  certainly  important  I  statistical  investigation  not  to  forget  that  the  data  do  not  tell everything,  and  in  their  summarized,  reduced  form,  they  leave  out  a  lot  of  information  that  may be importance “. Tippet.

4.  Statistical  results  are  not  always
unquestionable:

Statistical  results  are  more  in  the  nature  of  estimate  and  probabilities  than  exact  statement.  The statistical  methods  are  one  of  the  several  methods  of  studying  problems.  It  helps  us  in  studying trends,  in  forming  an  idea  of  the  probabilities,  in  knowing  how  a  given  phenomenon  has  been behaving generally necessarily unquestionable and reliable.

5.  Statistical  laws  are  true  on  the  average  or  in  the  long  run:

That  is,  they  are  not  true  in  their  entirety-they  are  statements  of  long-term  tendencies,  and, therefore,  cannot  be  considered  stables.  Statistical  laws  of  physical  science  are.  This  is  because statistics  deals  with  phenomena  which  are  affected  by  a  multiplicity  of  causes.  And  it  is  not possible  to  study  statically  the  effects  of  each  of  those  causes  to  factors  separately,  as  it  is possible  under  the  experimental  methods.  Because  of  this  limitation,  conclusion  arrived  at  are not  perfectly  accurate  and  consequently  the  same  conclusions  cannot  be  arrived  at  under  similar condition at all times.

6.  Statically  result  might  leads  to  fallacious  conclusions  if  they  are  quote  without their  context  or  If  they  are  manipulated:

Statistical  results  are  true  only  in  a  particular  context,  if  the  context  is  absent,  we  cannot  be  sure of  their  validity.  E.g.  if  the  average  profits  earned  by  two  firms  are  over  the  past  few  years  are quoted,  and  incidentally,  m  the  averages  happens  to  be  identical  quantities,  the  conclusions  may be  drawn  that  both  the  firms  are  doing  equally  well.  But  if  the  actual  profits  earned  by  each  of the  two  firms  during  the  period  were  examined,  it  may  be  found  that  the  profits  of  one  firms  is going up year by year while those of the other are going down by down.

7. Statistical data are liable to be misused easily:

Any  person  can  use  statistics  and  draw  any  type  of  conclusion  he  likes  they  may  be  used  by anyone  to  make  a  worse  case  appears  to  be  a  better  case.  Like  medicines  in  the  hands  of  quacks, statistics  can  be  easily  misused  by  the  inexpert,  statistical  data  can  be  scientifically  handled  only by those who have expert knowledge of statistical methods.

Thank you.......     Avhi Aryal

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