STATISTICS
Statistics
Statistics is a branch of mathematics which deals with the collection, presentation, analysis
and interpretation of the numerical data.
The word ‘Statistics’ has been derived from the Latin word ‘Status’ which means a political
state.
The word ‘statistics’ is used both in singular and plural sense. In the singular sense, statistics
is a science which deals with the collection, presentation, analysis and interpretation of
the numerical data. In the plural sense, statistics means all the numerical data collected
with some purpose.
- Data
Data are a number of facts. The word ‘datum’ is singular and ‘data’ is plural. Datum is
a Latin word which means ‘fact’. The process of gathering the data for some specified
purpose is called data collection.
The idea may be taught orally.Eg. : The marks scored by 10 students in an examination are :45, 90, 86, 74, 57, 36, 98, 27, 64, 50