Lecture 2 - Frequency Distributions Tables Ungrouped (list...

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Unformatted text preview: Frequency Distributions Tables Ungrouped (list of scores) Grouped (grouped by ranges) Graphs histograms frequency polygons Table Distributions The variable: time (in minutes) between getting out of bed this morning and eating your first bite of food. Time (min) : Ungrouped (6, 28, 27, 7, 7, 24, 39, 55, 13, 17, 13, 13, 3, 23, 18, 37, 2, 8, 11, 18, 22, 2, 21, 31, 12) Grouped Frequency Distribution X f 51-60 1 41-50 0 31-40 3 21-30 6 11-20 8 1-10 7 25 Bad Grouped Frequency Distribution X f 0-10 7 11-20 8 21-30 6 31-40 3 41-50 0 51-60 1 25 Grouped Frequency Distribution X f 51-60 1 41-50 0 31-40 3 21-30 6 11-20 8 1-10 7 25 T erm s that D escribe D istributions Term Features Exam p le "S ym m etric" left side is m irror im age of right side "P ositively skew ed" right tail is longer then the left "N egatively skew ed" left tail is longer than the right "U nim odal" one highest point "B im odal" tw o high points "N orm al" unim odal, sym m etric, asym ptotic...
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This note was uploaded on 11/24/2009 for the course PSYCH 100A taught by Professor Marken during the Spring '07 term at UCLA.

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Lecture 2 - Frequency Distributions Tables Ungrouped (list...

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