the total frequency is denoted by
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The absolute frequency is the number of times that a certain value appears in a statistical study. It is denoted by fi. The sum of the absolute frequencies is equal to the total number of data, which is denoted by N. This sum is commonly denoted by the Greek letter Σ (capital sigma) which represents 'sum'.
Step-by-step explanation:
The total of the frequency column, 20, represents the total number of students included in the sample. A relative frequency is the fraction or proportion of times an answer occurs. To find the relative frequencies, divide each frequency by the total number of students in the sample - in this case, 20.
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