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13 Cards in this Set
- Front
- Back
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qualitative data uses...
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words
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quantitative data uses...
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numbers
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what are the two types of qualitative data they are...
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discrete and continuous
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discrete data can be...
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counted
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continuous data can be...
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measured
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primary data can be collected by ...
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you (or on your behalf)
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you can [primary]collect data from ...
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questionnaires,data logging, counting and taking measurements
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secondary data can be collected from ...
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internet, books and newspapers
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an important source of secondary data is the...
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national census(every 10 yrs)
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3 types of sampling
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simple random sampling,
systematic sampling, stratified sampling |
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simple random sampling
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eg. names in a hat
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systematic random sampling
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eg. every 10th person
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stratified random sampling
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pick data in proportion to number of items of a particular group
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