Cumulative Frequency

Want to download the Cumulative Frequency revision notes in PDF format? This is the running total of the frequencies. On a graph, it can be represented by a cumulative frequency polygon, where straight lines join up the points, or a cumulative frequency curve. Example:Frequency:     Cumulative frequency:4                    46                    10             (4 + 6)3 …

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Average

Want to download the Averages revision notes in PDF format? An average is a value representing a group of data. The common averages are the mean, median and mode. MeanMean is the most common, we know the average, comparing the summary of values. It is the sum of all the numbers divided by the number …

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