Frequency table Consider the following table of 50 scores of an exam Class

Frequency table consider the following table of 50

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Frequency tableConsider the following table of 50 scores of an exam.ClassFrequency01-20221-40341-60861-801281-10025This table is called a frequency table (or frequency distribution) A. Bourhim (Syracuse University)Frequency distributionsMAT121, Spring 2015 4 / 12
Relative Frequency table Consider the previous example of 50 scores of an exam, and keep in mind that Relative frequency = Class frequency Sum of all frequencies . Class Frequency 01-20 2 21-40 3 41-60 8 61-80 12 81-100 25 SUM= 50 A. Bourhim (Syracuse University) Frequency distributions MAT121, Spring 2015 5 / 12
Relative Frequency tableConsider the previous example of 50 scores of an exam, and keep in mind thatRelative frequency=Class frequencySum of all frequencies.Complete the following table. Class Frequency Relative Frequency 01-20 2 21-40 3 41-60 8 61-80 12 81-100 25 SUM= 50 A. Bourhim (Syracuse University) Frequency distributions MAT121, Spring 2015 6 / 12
Cumulative Frequency table Consider the previous example of 50 scores of an exam. Class Frequency 01-20 2 21-40 3 41-60 8 61-80 12 81-100 25 SUM= 50 Class Cumulative Frequency Score less or equal 20 2 Score less or equal 40 5 Score less or equal 60 13 Score less or equal 80 25 Score less or equal 100 50 The right table is called a cumulative frequency table or distribution . Keep in mind that the last cumulative frequency coincides with the size of the sample.

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