What is a frequency diagram? Bar charts. Bar charts represent data using rectangular bars that are the same width. They can be used for categorical Vertical line charts. Vertical line charts

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Frequency table calculator A frequency is the number of times a data value occurs. For example, if ten students score 90 in statistics, then score 90 has a frequency of 10.

1, 2, 3, 2, 4, 5, 6, 2, 2, 1. Hence, frequency of the number 2 is 4. Similarly, the number 1 has occurred 2 times, the numbers 3, 4, 5 and 6 all have just occurred 1 time as shown below. 1, 2

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