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Quantitative Techniques – I




                    Notes              (b)  Inductive  Statistics:  It  includes  all  those  methods  which  are  used  to  make
                                            generalisations about  a population  on the basis of  a sample.  The techniques  of
                                            forecasting are also included in inductive statistics.
                                       (c)  Inferential Statistics:  It includes all those  methods which  are used  to test certain
                                            hypotheses regarding characteristics of a population.

                                   2.  Applied Statistics: It consists of the application of statistical methods to practical problems.
                                       Design of  sample surveys,  techniques of  quality control,  decision-making in business,
                                       etc., are included in applied statistics.
                                   1.1.2 Statistics as a Science or an Art


                                   We have seen above that statistics is a science. Now we shall examine whether it is an art or not.
                                   We know that science is a body of systematized knowledge. How this knowledge is to be used
                                   for solving a problem is work of an art. In addition to this, art also helps in achieving certain
                                   objectives and to identify merits and demerits of methods that could be used. Since statistics
                                   possesses all these characteristics, it may be reasonable to say that it is also an art.
                                   Thus, we conclude that since statistical methods are systematic and have general applications,
                                   therefore, statistics is a science. Further since the successful application of these methods depends,
                                   to a considerable degree, on the skill and experience of a statistician, therefore, statistics is an art
                                   also.




                                     Did u know?  R.A. Fisher is a notable contributor to the field of statistics. His book ‘Statistical
                                     Methods for Research Workers’, published in 1925, marks the beginning of the theory of
                                     modern statistics.

                                   Self Assessment


                                   Multiple Choice Questions
                                   1.  Who gave the following definitions of statistics?
                                       “Statistics is the science of counting”.
                                       (a)  Bowley                       (b)  Boddington

                                       (c)  King                         (d)  Saligman
                                   2.  “Statistics is the science of estimates and probabilities”.
                                       (a)  Webster                      (b)  Secrist
                                       (c)  Boddington                   (d)  Yule & Kendall

                                   3.  “The science of statistics is the method of judging collective, natural or social phenomena
                                       from the results obtained by the analysis or enumeration or collection of estimates”.
                                       (a)  Achenwall                    (b)  Marshall

                                       (c)  W.I. King                    (d)  Croxton & Cowden











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