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# MATH 2200: Elementary Statistics

## Types of Data

Researchers gain knowledge about a seemingly haphazard situation by collecting information about a variable. This information is called data. This sub-module explores the two methods for classifying data. The type of data determines what statistical analysis can be performed on the data.

### Module One Introduction

You are probably asking yourself the question, “When and where will I use statistics?”  If you read any newspaper, watch television, or use the Internet, you will see statistical information.  There are statistics about crime, sports, education, politics, and real estate.   Typically, when you read a newspaper article or watch a television news program, you are given sample information.  With this information, you may make a decision about the correctness of a statement, claim, or “fact.”  Statistical methods can help you make the “best educated guess.”

Since you will undoubtedly be given statistical information at some point in your life, you need to know some techniques for analyzing the information thoughtfully.   Think about buying a house or managing a budget.  Think about your chosen profession.  The fields of economics, business, psychology, education, biology, law, computer science, police science, and early childhood development require at least one course in statistics.

In this module, The Basics of Statistics, you will be introduced to the basic concepts and vocabulary of statistics.  Additionally, you will be shown how to organize qualitative data for use in statistical research.

## Topic Overview

• Statistics Vocabulary

• Types of Data

• Sampling Techniques

• Qualitative Data