calculate the cumulative frequency and percentage.find out the endpoint for each interval.figure out what the frequency is for each interval.construct another frequency distribution table.Use the data above (the same data as in Example 2 of the previous section on Cumulative Frequency) to:.Thus,Ĭumulative percentage = (cumulative frequency ÷ n) x 100 Example 1 – Calculating cumulative percentageįor 25 days, the snow depth at Whistler Mountain, B.C. In fact, it is possible to have the two vertical axes, (one for cumulative frequency and another for cumulative percentage), on the same graph.Ĭumulative percentage is calculated by dividing the cumulative frequency by the total number of observations ( n), then multiplying it by 100 (the last value will always be equal to 100%). The main advantage of cumulative percentage over cumulative frequency as a measure of frequency distribution is that it provides an easier way to compare different sets of data.Ĭumulative frequency and cumulative percentage graphs are exactly the same, with the exception of the vertical axis scale.
It calculates the percentage of the cumulative frequency within each interval, much as relative frequency distribution calculates the percentage of frequency. Please contact us to request a format other than those available.Ĭumulative percentage is another way of expressing frequency distribution. It is not subject to the Government of Canada Web Standards and has not been altered or updated since it was archived. Information identified as archived is provided for reference, research or recordkeeping purposes.
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