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Chapter 3

Ch. 3 - Central Tendency.docx

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PSYC 2530
Anne Russon

Ch. 3 - Central Tendency Sunday, November 11, 2012 5:51 PM PSYC 2530 Introductory Statistics Chapter 3: Central Tendency  Central tendency is a statistical measure to determine a single score that defines the center of a distribution. The goal of central tendency is to find the single score that is most typical or most representative of the entire group.  The mean for a distribution is the sum of the scores divided by the number of scores  μ = population mean o  M or sample mean o  If the scores in a distribution are listed in order from smallest to largest, the median is the midpoint of the list. More specifically, the median is the point on the measurement scale below which 50% of the scores in the
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