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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.

Qualitative Data

Once the researcher has collected the data, he or she must organize the data in some meaningful way, in order to describe situations, draw conclusions, or make inferences. In this lesson, we focus on how to present qualitative data using tables and graphs.


 

Part A
Part B

Practice Problems 

Now, it is your turn to practice. Here are a few practice problems to help learn the concepts. Just click on the link to get started:
Part I
Part II

If you get stuck with these problems or want to review, here is a power point of some practice problems:

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