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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Loci & Constructions

Want to download the Loci & Constructions revision notes in PDF format? A locus is a set of points satisfying a certain condition. The term ‘locus’, however, is rarely used in exams. The question is more likely to be of this format: Example:The diagram shows two points P and Q. On the diagram shade the …

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Circle Theorems

Want to download the Circle Theorems revision notes in PDF format? The red line in the second diagram is called a chord. It divides the circle into a major segment and a minor segment. The diagrams show that:a) The angle formed at the centre of the circle by lines originating from two points on the …

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Areas and Volumes

*** Remember, with many exam boards, formulae will be given to you in the exam. However, you need to know how to apply the formulae and learning them (especially the simpler ones) will help you in the exam. *** A prism is a shape with a constant cross section, in other words the cross-section looks …

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Angles – Acute, Obtuse, Straight and Right

Want to download the Angles revision notes in PDF format? Related Angles Lines AB and CD are parallel to one another (hence the ยป on the lines).a and d are vertically opposite angles. Vertically opposite angles are equal. (b and c, e and h, f and g are also vertically opposite).g and c are corresponding …

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