Avhi Aryal

Role of Computer Technology in Statistics With the advancement in computer technology, many innovative techniques for use in applied statistics have recently been developed. In most of the disciplines like medicines, agriculture, business and government these application have solved important problem. Performing calculations almost at the speed of light. The computer has become one of the most useful research tools in modern times. Computers are ideally suited for data analysis concerning large research projects. The computer can perform many statistical calculations easily and quickly. Computation of means, standard deviation, correlation coefficients, t-test, analysis of variance(ANOVA), analysis of covariance(ANCOVA), multiple regression, factor analysis and various non-parametric analysis are just few of the programs and subprograms that can be solved easily using computer. Similarly, using computer, linear programming, multivariate analysis, Moute Carlo simulations etc. also can

Role of Probability Theory in Statistics Statistics and Probability theory are all about things that are not really certain. Probability Theory is the attempt to extract knowledge about what event has happened or will happen in the presence of this uncertainty. Apart from the earliest application of probability in gambling, numerous other exist : in Science, where we make experiment and interpret them ; in Finance ; in Insurance and in weather reports etc. In real life we do not have the probabilities, we have the data. And so we want tools that allow us to estimate the probabilities from the given data. This is what statistics is about. In most of the academic discipline research area; it is the data we have and we want to know about probabilities.   Statistics is the art of guessing the model and its parameters. It is based on probability theory. In most of the scientific research probability theory underlines statistical inference. Statistical inference involve making generalizat

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  mea

Scopes of Statistics 1.  Statistics and planning:  Statistics in indispensable into planning in the modern age which is termed as “the age of planning”. Almost all over the world the govt. are re-storing to planning for economic development. 2.  Statistics and economics:  Statistical data and techniques of statistical analysis have to immensely useful involving economical problem. Such as wages, price, time series analysis, demand analysis. 3.  Statistics and business:  Statistics is an irresponsible tool of production control. Business executive are relying more and more on statistical techniques for studying the much and desire of the valued customers. 4.  Statistics and industry:  In industry statistics is widely used inequality control. In production engineering to find out whether the product is confirming to the specifications or not. Statistical tools, such as inspection plan, control chart etc. 5.  Statistics and mathematics:  S