This slides give an introduction to development of statistics

1. Development of STATISTICS
Simple form of statistics have been used since the
beginning of civilization.
The term STATISTICS which was used until the
18th century as a shorthand for the descriptive
science of state.

2. Throughout 19th century
 Although probability theory had been developed but its use in
studying statistical findings was almost nonexistent, because
most of the social statisticians at the time were content to let
the data speak for themselves.
 They were not concerned with sampling but rather tried to
obtain censuses of the entire population.
 Probabilistic inference of samples to a population was almost
unknown.

3. Movement began with
 The changing definition of statistics by Galton :
Statistics are the only tools by which the opening
can be cut through the formidable thicket of
difficulties that bars the of those who pursue the
science of man.
Karl pearson originated a research program aimed
at developing new methods of using statistics in
inference.

4. Throughout 20th century
Two of the most important areas of applied statistics in the
early 20th :
1. population biology.
2. Agriculture.
After the early years of 20th century a rapidly increasing people
in science, business and government began to regard statistics
as a tool that was able to provide quantitative solutions to
scientific and practical problems.

5. Nowadays the ideas of
STATISTICS are everywhere
Statistical inference has become indispensable to:
# Engineering and scientific studies
# Public health and medical research
# marketing and quality control
# Education
# Economics
and so on………..