Transcription of Introductory Statistics Notes - Stat-Help.com
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Introductory Statistics Notes - Stat-Help.com
Introductory Statistics NotesJamie DeCosterDepartment of PsychologyUniversity of Alabama348 Gordon Palmer HallBox 870348 Tuscaloosa, AL 35487-0348 Phone: (205) 348-4431 Fax: (205) 348-8648 August 1, 1998 These were compiled from Jamie DeCoster s Introductory Statistics class at Purdue University. Textbook ref-erences refer to Moore sThe Active Practice of Statistics . CD-ROM references refer to Velleman you wish to cite the contents of this document, the APA reference for them would beDeCoster, J. (1998). Introductory Statistics <month, day, and year you downloadedthis file>from help with data analysis RIGHTS TO THIS DOCUMENT ARE Understanding Data21 Introduction32 Data and Measurement43 The Distribution of One Variable54 Measuring Center and Spread75 Normal Distributions10II Understanding Relationships126 Comparing Groups137 Scatterplots148 Correlation159 Least-Squares Regression169 Association vs.
Chapter 3 The Distribution of One Variable † The pattern of variation of a variable is called its distribution.If you examined a large number of difierent objects and graphed how often you observed each of the difierent values of the variable you
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