PSYC 210 Chapter Notes - Chapter 3: Exploratory Data Analysis, Dependent And Independent Variables, Skewness

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Frequency distribution a distribution in which the values of the dependent variable are tabled or plotted against their frequency of occurrence i. e. raw scores: 1, 1, 1, 2, 4, 4, 5, 6, 7, 7, 7, 8. Stem and leaf displays graphical display presenting original data arranged into a histogram. Exploratory data analysis (eda) a set of ways to present data in visually meaningful ways. Leading digits most significant digits; the leftmost digit of a number. Stem vertical axis of display containing the leading digits. Leaves horizontal axis of display containing the trailing digits. Histogram graph in which a rectangle is used to represent frequencies of observations with each interval no spaces between the bars; values are continuous. Real lower limit the point halfway between the bottom of one interval and the top of the one below it for example: interval = 5-10; lower limit = 5; real lower limit = 4. 5.

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