categorical data


Definition of Categorical Data

  • In Categorical Data, a set of data is sorted or divided into different categories, according to the attributes of the data.

More about Categorical Data

  • Categorical data are always nominal whereas nominal data need not be categorical.

Example of Categorical Data

  • The following diagram shows the different colored toys placed in two different shelves.

These toys can be sorted according to their color in different categories as:

Solved Example on Categorical Data

The table shows the details of the hair color and eye color of a number of students in a class. Find the total number of students with black hair, ignoring the eye color.

Choices:
A. 6
B. 4
C. 5
D. 3
Correct Answer: C
Solution:
Step 1: To find the total number of students with black hair, ignoring their eye color, you just have to add the number along the column labeled 'Black'.
Step 2: = 2 + 1 + 1 + 1 = 5
Step 3: So, the total number of students with black hair, ignoring the eye color, is 5.

Related Terms for Categorical Data

  • Attribute
  • Data
  • Set