What is
Statistics?
Written and compiled by Ng Kwan Kee
The word “statistics” is being used in
different contexts and has different meanings.
We often come across statistics such as Gross Domestic Product,
Population, stock market indices that most of us are very familiar with. These are essentially numerical
indicators. The Department of Statistics
of
Another meaning of the word “statistics” that
most of us are familiar with is essentially descriptive statistics such as
mean, median, mode, variance and standard deviation. These are basic concepts in the field of
statistics on central tendency and variability.
If we refer to “statistics” as a discipline or
field of study, it can be defined as “a mathematical science pertaining to the
collection, analysis, interpretation or explanation, and presentation of data
(source: Moses, Lincoln E. Think and Explain with
statistics, pp. 1 - 3. Addison-Wesley, 1986). It also
provides tools for prediction and forecasting based on data. It is applicable
to a wide variety of academic disciplines, from the natural and social sciences
to the humanities, government and business.
Wikipedia -
Statistics gives a good introduction on the history, overview, methods,
disciplines and links to “List
of academic statistical associations” which I will not repeat here.
To get a better idea of what statistics is,
perhaps browsing through the following links can help:
What Industries Employ Statisticians?
The Department of Statistics of Singapore, Ministry of Trade and Industry
Introduction to Probability and Statistics
Statnotes (for
advanced users)
Have a better idea about Statistics now? Or do you have something interesting about Statistics that you would like to share
with us? Please feel free to drop us a note at sis@sis.org.sg
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