SOSC 2500 Lecture Notes - Lecture 3: Normal Distribution, Frequency Distribution, Skewness

• School: University of Windsor
• Department: General Arts and Social Sciences
• Course: SOSC 2500
• Professor: Monette

Document Summary

Important skill to learn because for many of the statistical tests we will be doing further on in the course; all we will be doing is seeing if two distributions are significant- ly different from each other. This is much easier to understand if you are able to visualize the distributions. Frequency distribution: table/graph showing how many times a value or score appears in a set of values or scores. Shape of the distribution tells us how much variability is in the distribution. End points are the range, also called the tails. Means if you draw a vertical line down the middle, half the scores will be on one side, half will be on the other - mirror images of each other. Highest point - mode (c has 2 modes) Height; symmetrically distributed - most are of an avg height, some really short and some really tall people. Skewness: more extreme values on one side than another.