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Introduction to Statistics

Introduction to Statistics. Introduction to Statistics. Statistics is the Science of data Any set of data contains information about some group of individuals. The information is organized in variables

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Introduction to Statistics

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  1. Introduction to Statistics

  2. Introduction to Statistics • Statistics is the Science of data • Any set of data contains information about some group of individuals. The information is organized in variables • Individuals are the objects described by a set of data. (they can be people, animals, or things) • A variable is any characteristic of an individual.

  3. Types of Variables Categorical – places the individual into a group Quantitative – take a numerical value

  4. Exploring Data • Example: for the set of data answer the following – • What Individuals do the data describe? • Adults • How many variables are there? What are they? • Three: Marital status, Count, and Percent • In what units is each variable recorded? • Count is recorded by the million, and Percent • Are the variables quantitative or categorical? • Marital Status is categorical and Count and Percent are both quantitative

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