intro - STAT3000 Chapter 1: Examining Distributions What is...

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STAT3000 Chapter 1: Examining Distributions What is Statistics ? Statistics is the scientific discipline which consists of the collection of data describing data drawing conclusions or generalizations from data Statistics is the science of understanding data. Descriptive Statistics 1
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utilizes numerical and graphical methods to look for patterns in a data set, to summarize the information revealed in a data set, and to present the information in a convenient form. Inferential Statistics - utilizes sample data to make estimates, decisions, predictions, or other generalizations about a larger set of data and measure their reliability. Fundamental Terminology of Statistics 2
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Individuals, or subjects – the objects described by a set of data. Individuals may be people, but they may also be business firms, common stocks, or other objects. population – the entire collection of individuals about which information is sought. variable – a characteristic or property of an individual. sample – a subset of the individuals of a population. parameter – a quantity that describes a statistical population. statistic – a quantity that describes a statistical sample. 3
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Example: A college dean is interested in learning about the average age of faculty at the college. Match the following.
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This note was uploaded on 06/05/2011 for the course STAT 3000 taught by Professor Staff during the Spring '08 term at University of Georgia Athens.

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intro - STAT3000 Chapter 1: Examining Distributions What is...

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