Qualitative Variable

Posted in Statistics, Total Reads: 1072
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Definition: Qualitative Variable

Qualitative Variable is also known as categorical variable or discrete variables are measures of types & are often represented as a name, symbol or a number code.


Example of quantitative and qualitative variable,

  • “Which country were you born?”  = qualitative variable
  • How many dogs where there?” = quantitative variable

Qualitative variables are classified into the following types:


  • Nominal variables

Gender = male

= female

 

  • Ordinal variables

1 = very bad

2= bad

3= moderate

4= good

5= very good

 

  • Dummy variables

Age 1 to 10 = 1

Age 10 to 20 = 2

Age 20 to 30 = 3

 

  • Preference variables

Elementary school

High school

College

University

Regional college

International institution

 

  • Multiple response variables

 Select one or more subject from the following

  1. Mathematics
  2. Physics
  3. Chemistry
  4. English
  5. Computer science

Statistically, these variables may be known as binomial or amenable to chi-square analysis.


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