What Frequency table is
A frequency table is a chart that shows the frequency of different values in a dataset. It is used to organize and display data in a meaningful way. Frequency tables are often used to summarize categorical data.
Steps for creating a frequency table:
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Count the number of times each value occurs in the dataset.
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Arrange the values in a table in order from least to greatest.
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For each value, calculate the frequency, which is the number of times it appears in the dataset.
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Record the frequencies in the table.
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Calculate the relative frequency, which is the frequency divided by the total number of values in the dataset.
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Record the relative frequencies in the table.
Examples
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A frequency table can be used to show the distribution of a categorical variable by counting the number of observations for each category. For example, a frequency table of eye color could show the number of people with blue, brown, green, or other eye colors.
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A frequency table can also be used to show the distribution of a numerical variable by grouping the data into ranges and counting the number of observations that fall within each range. For example, a frequency table of test scores could show how many students earned scores between 0-10, 11-20, 21-30, etc.