STAB22H3 Midterm: STAB22- Midterm Study Guide
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STAB22H3 Full Course Notes
Verified Note
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Document Summary
What is statistics: a way of reasoning, a collection of tools and methods to help us understand the world, all about variation. Who, what, where, when, why and how: who: individual cases, objects that are described by a set of data, e. g. people, animals, things, what: the variables, categorical variables characteristics, can"t be measured or counted. E. g. hair color, eye color, area code, zip code: quantitative variables - #s, units, can be measured or counted) E. g. age: where: the place in which the variables take place, when: the time in which the variables take place, why: the purpose of the data. Ordinal scales/variables: falls between nominal and interval scales, have natural ordering of values but undefined interval distances between the values, e. g. Social class: upper class, middle class, lower class. Nominal variables: a variable whose values are used only to name categories, e. g. Province, country names: also referred to as categorical or qualitative variables.
