[Statistics Basic] 3. What is a frequency distribution table?

1. What is a frequency distribution table?

  - Class: Dividing the entire of data into several subgroups (category, section)

 

  - Frequency: Number of data beloging to each class

 

  - Relative frequency: The ratio of the frequency divided by the total number of data, that is, the total frequency (If all relative frequencies are summed, it becomes 1)

 

  - Frequency Distribution Table: Data organization method to understand the shape, center position, and distribution of the population's approximate distribution. Consist of rank, frequency, relative frequency, cumulative frequency, etc.

 

  - In the frequency distribution table, information to be lost and information to be obtained:

    Lost information: the numerical value of the data itself

    Information obtained: Characteristics of data distriution (concentration, symmetry, etc.)

 

 

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[references]

1. www.ktword.co.kr/abbr_view.php?nav=2&id=886&m_temp1=1780