How to Make a Relative Frequency Table

Frequency tables are created from the results of a poll. Frequency tables tab the results of a poll and are used to construct histograms, which are graphical representations of the choices. Relative frequency tables are very important, as they express the choices on a poll as percentages instead of number of choices on a poll ( for example, 20% chose "A" instead of 44 people chose "A"). Constructing a relative frequency table is useful to construct histograms and to calculate the statistics related to a poll.

Instructions

    • 1

      Write down the results from the poll, broken down by options. For example: 44 people chose Option A, 56 chose B, 65 chose C, 45 chose D, 10 chose E.

    • 2

      Create a table with three columns. Label the first column "Data Value," the second column "Frequency" and the third column "Relative Frequency."

    • 3

      Write down the poll options on the "Data Value" column; for example:

      Data Value

      Option A

      Option B

      Option C

      Option D

      Option E

    • 4

      Write down the result from the poll in the "Frequency" column. Add the frequencies and write the total at the bottom of the second column. Continuing the example:

      Data Value || Frequency

      Option A || 44

      Option B || 56

      Option C || 65

      Option D || 45

      Option E || 10

      TOTAL: || 220

    • 5

      Go to the "Relative Frequency Column" column. Divide each frequency value by the total to calculate each relative frequency value. Express the percentage as a decimal between zero and 1. Write down the total at the bottom of the column.

      Option A had 44 frequency, and a relative frequency of 44/200 = 0.2

      Data Value || Frequency || Relative Frequency

      Option A || 44 || 0.2

      Option B || 56 || 0.25

      Option C || 65 || 0.30

      Option D || 45 || 0.2

      Option E || 10 || 0.05

      TOTAL: || 220 || 1

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