Frequency Distribution of Ungrouped Data
The frequency is the number of times the value occurs in the data set. A frequency distribution is an organization of raw data in tabular form, using classes (or intervals) and frequencies.
The total of the frequencies in the distribution is symbolized by the letter N. The frequency distribution might show a pattern in the set that is not apparent when simply examining the individual values.
The types of frequency distributions that will be considered in this section are categorical, and ungrouped frequency distribution
Categorical Frequency: Categorical frequency distributions represent data that can be placed in specific categories, such as gender, hair color, or religious affiliation.
Ungrouped frequency distribution: An ungrouped frequency distribution simply lists the data values with the corresponding number of times or frequency count with which each value occurs.
Relative Frequency: The relative frequency for any class is obtained by dividing the frequency for that class by the total number of observations.
Cumulative frequency: The cumulative frequency for a specific value in a frequency table is the sum of the frequencies for all values at or below the given value.
Find out more about frequency distribution by reading the explanation below.
Frequency Distribution of Ungrouped Data
Practice: Answer the following exercises about frequency distribution of ungrouped data.