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Frequency Histograms and Polygons By Daniel Hyde ORB Education Visit http://www.orbeducation.co.uk for the other resources in this pack.

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CONSTRUCTING GRAPHS FDT 7710128798610 9985736457 4487 897117 5946392788 97581068792 A Frequency Distribution Table (FDT) is used to organise raw data. A pair of dice was rolled 50 times and the sum recorded. Construct a frequency distribution table. ScoreTallyFrequency 22 32 44 54 64 711 89 98 104 111 121 Total50 Skip Process

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CONSTRUCTING GRAPHS Frequency Histogram Construct a frequency histogram to illustrate the data. 3 1 2 4 5 6 7 8 9 10 11 24681011123579 Sum of Dice Frequency Rolling Dice

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CONSTRUCTING GRAPHS Histogram Features Features of a Frequency Histogram Sum of Dice 3 1 2 4 5 6 7 8 9 10 11 24681011123579 Frequency Rolling Dice Appropriate labelling of axes Half column gap here Heading No gaps between columns Columns all the same width Labels

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CONSTRUCTING GRAPHS Frequency Polygon Construct a frequency polygon to illustrate the data. 3 1 2 4 5 6 7 8 9 10 11 24681011123579 Sum of Dice Frequency Rolling Dice Place a dot at the top of each column (in the centre) Now join each dot starting at the ‘origin’ This line should join the x-axis at the next marker This is usually drawn on top of a Frequency Histogram

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ORB Education Visit http://www.orbeducation.co.uk for the other resources in this pack. Frequency Histograms and Polygons By Daniel Hyde

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