ECON 2B03 Lecture Notes - Canada 2011 Census, Data Definition Language

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September 9, 2011: statistics presentation and interpretation of data. : a branch of mathematics dealing with the collection, Can be separated into two categories: descriptive statistics. Which seeks to describe general characteristics of a set of data. features of a population based on a (known) sample drawn from a population. which seeks to draw inferences about (unknown: inferential statistics- Question: why do we need statistics: mainly due to uncertainty (we can"t be certain about many things in life, even though we know they clearly exist). Example: what is the actual average height of all the people in the world at a given point in time: you would take a sample of people from the population and then make inferences about it. In any statistical study, we analyze information/data obtained from individuals. Individuals can be people, animals, households, plants or any object of interest. Are the objects described in a set of data: variable:

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