SOAN 2120 Study Guide - Final Guide: Central Tendency, Confidence Interval, Experiment

• School: University of Guelph
• Department: Sociology and Anthropology
• Course: SOAN 2120
• Professor: David Walters

Document Summary

Chapter 4 - quantitative methods (4 questions on final exam) Mean average measure of central tendency add up all the scores, then divide by the number of scores. Middle number measure of central tendency the middle point the 50th percentile - or the point where half the cases are above it, and half the cases are below it. Most occurring number measure of central tendency can have more than one mode. A distribution with two modes with two numbers that occur the most frequent. Multimodal a distribution with more than one mode can have 5 modes lets say. A bell shaped frequency distribution peak in the center, identical curving slopes on either side. Skewed distribution a frequency distribution that is not normal (not bell shaped) More cases are at one end of the extremes. If the distribution is skewed more to the left = positive; mean > median.