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chap6_2010 - Chapter 6 Introductory Statistics and Data...

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Chapter 6 Introductory Statistics and Data
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What is Statistics? Numerical facts Science that helps us collect, analyze, and interpret data and then make decisions
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Genetic Code of Statistics Dataset: a group of numbers or information Element: a member of the dataset Variable: a characteristic common to all members Observation: the value of a variable for an element Dataset: all FIU students Element: you! Variable: GPA Observation: 4.00
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Genetic Code of Statistics Descriptive Statistics: Methods or techniques used to summarize data Graphs: frequency Central Tendency: mean, median, mode Dispersion: std, deviation, variance
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Population vs. Sample Population (Universe): the set of ALL elements Sample: a group of elements selected from a population Inferential (Inductive) Statistics : Process of drawing information from sample observations and making conclusions about the population Census: Colleting data from every element of a target
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This note was uploaded on 12/03/2011 for the course EIN 5226 taught by Professor Staff during the Fall '11 term at FIU.

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chap6_2010 - Chapter 6 Introductory Statistics and Data...

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