ABSTRACT
In everyday use the word statistics has two meanings. In one sense it refers to the way we collect, analyze and interpret numerical facts which are termed data. Second, statistics are in themselves the raw numerical data resulting from observations or measurements, or are the results of calculations derived from such data. The term statistical analysis is often used and in general this may refer to the descriptive use of statistics to present and summarize data, or it may mean the way in which these statistics are used to make statistical inferences. This is the process whereby statistical information obtained from a sample is used to draw conclusions which have wider applicability than solely to the sample of observations or measurements obtained and is referred to as the inferential use of statistics.
