Statistics Day 

#GS3 #Science&Technolohy #Statistics 

The Government has been celebrating the Statistics Day, to popularise the use of Statistics in everyday life and sensitise the public as to how Statistics helps in shaping and framing policies.  

  • It has been designated as one of the Special Days to be celebrated at the national level and is celebrated on the birth anniversary of Prof. P C Mahalanobis, on 29thJune, in recognition of his invaluable contribution in establishing the National Statistical System. 
  • Every year, Statistics Day is celebrated with a theme of current national importance, which runs for a year by way of several workshops and seminars, aimed at bringing about improvements in the selected area.  
  • The theme of Statistics Day, 2019 was “Sustainable Development Goals (SDGs)” and carrying this forward the theme of Statistics Day, 2020 is selected as SDG- 3 (Ensure healthy lives and promote well-being for all at all ages) & SDG- 5 (Achieve gender equality and empower all women and girls).  
  • The updated version of the Report on Sustainable Development Goals-National Indicator Framework (NIF) Progress Report 2020 (version 2.1)will be released during the event. Along with the report, the Indian Statistical Services Cadre Management Portal will also be launched on 29thJune 2020. 
  • It is expected that these events will raise public awareness, especially among the younger generation, about the role of Statistics in socio-economic planning and policy formulation. 

About P C Mahalanobis 

Prasanta Chandra Mahalanobis was born in colonial India in 1893, and grew up within the intellectual tradition of the Brahmo Samaj reformist movement founded by Raja Rammohun Roy in Bengal. 

  • Mahalanobis distance: His strong interest in minimizing errors in this field took him into multivariate analysis where he developed the D2 statistic, the Mahalanobis Distance. His interest in errors included errors of observation, errors of measurement and sampling errors. 
  • Member of Planning Commission: As a member of planning commission, Prof. Mahalanobis came up with Two-sector Input-output model to be implemented during the Second Five Year Plan (1956-61), famously known as the Nehru-Mahalanobis model. 
  • Establish ISI: Also as founder of the Indian Statistical Institute, he was substantially involved in scientifically designing the surveys for large-scale sample. With the help of this, he set up the National Sample Survey with the aim to collect data on various aspects of socio-economic parameters of the country. 
  • Introduction of new concepts: The three notable contributions to the theory and practice of sample surveys by Mahalanobis are “pilot surveys, optimum survey design and Inter Penetrating Network of sub-samples technique (IPNS)”. He always advocated Inter penetrating network of sub-samples (IPNS) theory both in conduct of large scale sample surveys as well as in working of Government administration where he did not approve of the fact that it was regulated by principle of authority. Mahalanobis was very much concerned with errors at various stages of data collection and analysis and insisted on cross examination of data. He applied IPNS for assessment and control of errors, especially non-sampling errors, in surveys. His technique of IPNS was appreciated by both the statisticians as well as politicians. The concept of pilot surveys was a forerunner of sequential sampling developed by Abraham Wald, as acknowledged by Wald in his book. 
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