qualitative data - Non-numerical data which describes qualities, rather than measurements (e.g. texture, colour, taste), quantitative data - Data which is counted or measured, giving a numerical value (e.g. number of children, volume of a container), discrete data - Data which can be counted or takes specific values (e.g. number of rooms in a house, show size), continuous data - Data which can be measured on a scale (e.g. temperature, height, time), raw data - Information which has not been ordered or processed in any way, primary data - Data collected by or for the person who will be using it, secondary data - Data from another source, perhaps for a different reason (i.e. collected by somebody other than yourself), an advantage of primary data - It is trustworthy. You know how and by whom it was collected, and how recent it is., two advantages of secondary data - 1. cheap 2. easy to obtain , two disadvantages of secondary data - 1. Little knowledge of how or by whom it was collected and 2. It could be out of date , Why are tally marks useful in recording data? - Quicker to write than a word or number and grouping into fives makes them easier to process than |||||||||||||| , Give two methods of collecting data for an opinion poll - Any of these 2 1.Personal interviews 2.Telephone surveys 3.Postal surveys 4.Shoppers surveys,

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