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A frequency distribution in which the data is only nominal or ordinal. Ungrouped Frequency Distribution. A frequency distribution of numerical data. The raw data is not grouped. Grouped Frequency Distribution. A frequency distribution where several numbers are grouped into one class.
Frequency distribution is how often something occurs within a group of separate categories or ranges. Say you had a list of exam sco â¦ res from a class of students. You might want to find out how many people got between 0% and 10%, how many got between 11% and 20%, how many got between 21% and 30%, and so on.