04:192:300 Lecture Notes - Lecture 9: Standard Deviation, Level Of Measurement, Central Tendency

• School: Rutgers University
• Department: Communication
• Course: 04:192:300
• Professor: M E A R A Faw

Document Summary

Quantification of data = representing concepts with numbers. Numbers carry value (i. e. instrumental and symbolic) Ex: healthcare laws (how much will it cost user/government, etc) People mess with statistics to match their needs. Absolute numbers = foreign aid: us gives billion per year; uae gives . 89 billion per year. Percentage = us gives 0. 19% of annual gni; uae gives 1. 33% of annual gni. To figure out what is average in a population, we need more information. then we can compare individuals to the overall sample. Frequency distributions: way of presenting data that shows the number of times a variable"s attributes were observed in a sample. Measures that describe the center point of a distribution of quantitative data. Measures of central tendency give you information about the middle (or center) of your distribution. Means:(m) are reported most often; when in doubt, report the mean.