L8 Displaying Data Summarising Statistics

L8 Displaying Data Summarising Statistics - Displaying Data...

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Displaying Data & Summarising Statistics BAR CHART or BAR LINE DIAGRAM used for both quantitative and qualitative discrete data Good for comparing the frequency of outcomes, particularly if the differences are small. For qualitative data it can be useful to arrange the classes in order of magnitude (a Pareto chart)
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Displaying Data & Summarising Statistics BAR CHART or BAR LINE DIAGRAM
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Displaying Data & Summarising Statistics BOX AND WHISKER DIAGRAM used for quantitative data Shows skewness, outliers can be indicated Particularly good for comparing two or more sets of data No means of showing total frequency May not be suitable for very large or bimodal data sets
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Displaying Data & Summarising Statistics BOX AND WHISKER DIAGRAM
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Displaying Data & Summarising Statistics CUMULATIVE FREQUENCY CURVES used for quantitative data i.e. continious (a step diagram is used for discrete data) Mainly used for estimating percentiles, quartiles and medians Better diagrams are available for all other purposes
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Displaying Data & Summarising Statistics CUMULATIVE FREQUENCY CURVES
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Displaying Data &
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