Stats intro & categorical data

Information and facts that can be collected to help people solve problems, understand trends or to simply entertain!  We will be reviewing two types of data: Categorical and Numerical.

This is data that has been collected and displayed.  What types of graphs do you recognize?  Why are graphs helpful?

• ​Piece of information

• ​Gathered body of FACTS​

• In short, DATA is information or facts that can be collected to help people solve problems, understand trends or simply to entertain!

​Also known as CATEGORICAL data

​It categorizes or ​describes an element

​​So, operations like addition, subtraction, etc are NOT meaningful for such type of data

 Breeds of Dogs!

Categorical Data is...

 A collection of data that can be put into categories or groups.  Such as.......

Genres of books!

Categorical Data is...

 A collection of data that can be put into categories or groups.  Such as.......

It is also known as NUMERICAL data as you can count it.

So, operations like addition, subtraction, etc are meaningful for such type of data

​​It is expressed in number form (not as letters or words) such as....

​

Your height! (How tall you are.)

​

Numerical Data is...

These data are expressed in number form, (NOT words or letters). For example...

​

Time spent walking!

Numerical Data is...

These data are expressed in number form, (NOT words or letters). For example...

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Just one more question....