UXB132 Lecture Notes - Lecture 4: Central Tendency, Microsoft Excel, Alcohol By Volume
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How satisfied were you with your service today. Can be analysed with broad range of statistics. Categories cannot be ordered in terms of value. You know its higher/lower but not by how much. Actual distance between two values have a meaning. Can be characterised by the presence of an absolute zero. Can have zero weight eg. weight, blood alcohol level, height: statistics. A set of tools and techniques used for describing, organising and interpreting information or data -- exam. Involves: population --> samples --> height (score or value) Used to organise and describe the characteristics of a particular data set. Can describe the shape, centre, and spread of a dataset. Used to make inferences based on a smaller group of data. Provide simple ways to present large amounts of data with few summart values. Average age of everyone in this class (mean) "population" = all of the occurrences with a certain characteristic: how do we describe the distribution of data.
