The purpose of inquire in statistics is to collect information which is later processed to acquire data. Without this information it would be very difficult to compile accurate data
http://wiki.answers.com/Q/What_are_the_purpose_of_...

given a population and some parameter inferential statistics uses measurements of the parameter in a small sample of the population to estimate the parameter value for the poulation
http://answers.yahoo.com/question/index?qid=200607...

Statistics geared toward measuring central tendency
http://www.chacha.com/question/whatisthepurpose...

I hope you don't really expect me to answer that? Do you realise how many mathematical and statistical equations there are? It would probably take years to compile a complete list
http://en.allexperts.com/q/AdvancedMath1363/Toug...
