STAT151 Chapter Notes - Chapter 1: The Who, Categorical Variable, Unita

• School: University of Alberta
• Department: Statistics
• Course: STAT151
• Professor: Omar Rivasplata

Document Summary

Statistics is at play whenever there is data and a need for understanding something. To provide and solidify what the context is, you can organize the values into a data table with clear headers. The context is supplied by answering the five w"s : who, what, when, where, and why, how is also included. The rows of a data table state individual occurrences about what we are recording attributes for o. The who aspect is a bit more complex o o o. If someone is answering a survey, they are a respondent. If someone is participating in an experiment, they are a subject or participant. If the object is inanimate, it is called an experiment unit. Often the case that you are observing from a data table is just a sample from a larger pool o. The idea is that the sample should be representative of that larger population.