DATA & ITS CLASSIFICATION

DATA

• Definition:
  Data refers to raw facts, figures, observations, or measurements collected for analysis to gain information or draw conclusions.

TYPES OF DATA

1. Quantitative Data

   • Represents numerical values that can be measured or counted.

   • Examples: Height, weight, blood pressure, number of patients.

   • Can be further divided into:

     • Discrete Data:

       • Consists of distinct, separate values that can be counted.

       • Usually whole numbers with no intermediate values.

       • Examples: Number of children, number of hospital visits.

     • Continuous Data:

       • Can take any value within a range and can be measured.

       • Examples: Temperature, time, weight.

2. Qualitative Data (Categorical Data)

   • Represents characteristics, attributes, or categories that describe qualities or features.

   • Cannot be measured numerically but can be classified into groups.

   • Examples: Gender (male/female), blood group (A, B, AB, O), disease status (present/absent).

SUMMARY OF CLASSIFICATION