Discrete data - Counted - can take only certain values , Qualitative data - Descriptive information, Continuous data - Measured - can take any value, Quantitative data - Numerical information, Primary data - Data collected first hand and analysed by collector, Secondary data - Data already collected by someone else e.g. data found on the internet., Bias - An error that occurs when certain elements of a dataset are overweighted or overrepresented., Census - We collect data for every member of the group, Sample - We collect data only for selected members of the group, Raw data - Data in original form, straight off the experiment, Processed data - Has been edited, analysed or presented,

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