82410 - Data and Databases Importance of data Elements of a database Common summary measures of data Summary by groups 1 Show me the data

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1 1 Main Ideas • Importance of data • Elements of a database • Common summary measures of data • Summary by groups Data and Databases 2 1. Show me the data! Importance of data to society and sciences Standardized tests scores required for “no child left behind” law Genetic data help identify diseases and cures Economic data used to measure inflation and set interest rates for home loans Yield data help agronomists develop better crops Automobile crash data help engineers design safer cars 3 2. Database A database is a way to store and keep track of “raw” data Instructors create databases to keep track of grades of their students Database consists of individuals and variables 4 3. Individuals Individuals are the subjects or objects upon which observations are taken –E x a m p l e s : Persons contacted by phone in a survey
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This note was uploaded on 09/25/2010 for the course STAT 325 taught by Professor Butts during the Spring '10 term at Katholieke Universiteit Leuven.

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82410 - Data and Databases Importance of data Elements of a database Common summary measures of data Summary by groups 1 Show me the data

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