SOAN 2120 Lecture Notes - Lecture 5: Statistical Population, Standard Deviation, Central Tendency

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

Document Summary

The larger the standard deviation the wider the distribution. Follow the formula and then add all the squared values. Statistical population: group of people you will get data or information from. Histogram is basically a distribution curve just bigger. 6 components of a histogram are classes, Use a histogram to make decisions based on data. Class width is how wide your class is; all classes have to be equal width. Next step is determine class boundaries (like the borders of a state); Class frequency: total number of measurements that fall into the total number of classes. Stem and leaf is a visual representation of the data; you put the numbers in a pattern. For example, 3. 94 the 3 would be the stem and the . 94 would be the leaf. In a stem and leaf display, the value that comes before the decimal is the and the value that comes after is the: the stem and leaf display is like a.