SOAN 2120 Lecture Notes - Lecture 4: Pie Chart, Standard Deviation, Descriptive Statistics

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

Document Summary

Statistics is the science of taking a portion of the numerical data, studying it, and seeing what it tells us about the data as a whole. Studying statistics is studying how to analyze data. A statistical problem exists when there is something unknown about a population, which is the large group of people used to gather data from. Conclusions we draw about a population are called inferences. A sample must be taken from a population and then used to make inferences about the population as a whole sample is a randomly selected portion of a population. Usually first two steps will be done for you. Organize data into data set, a group of data then, step 3= analysis (descriptive statistics) Next, determine class width = range divided by number of classes can round up to a whole number. All classes must be of equal width.