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Lecture 4

Lecture 4.docx

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PSYC 1010
Jill Bee Rich

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PSYC 1010 Lecture 3 Descriptive Stats Central Tendency  Number that best represents the best approximation of the data Variability  How much the scores spread out from the central mean o This is ERROR ANALYSIS.  Range: o Subtract lowest score from the highest score o Any and all “outliers” will influence the scores  Standard deviation measures the average spread of scores (deviation from the mean) o Takes into account all scores in the distribution o Greater the variability, the greater the standard deviation (S.D.) Normal Distribution  The mean, median and mod
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