AQA · Mathematics · 8300
GCSE Maths: Types of data: primary & secondary
Statistics · AQA GCSE Maths (8300). Cards are generated from the Corbettmaths textbook exercise for Types of data: primary & secondary (Corbettmaths Video 343), and every card links back to the exact page it came from. Practice tests are drawn from this deck’s own cards. Source material © Corbettmaths — used with attribution.
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Define primary data.
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Data collected by the person or organization that will use it, gathered firsthand for a specific purpose.
Define secondary data.
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Data that has already been collected by someone else, or data obtained from an existing source.
Is data from conducting your own survey primary or secondary data?
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Primary data, because you are collecting it yourself firsthand.
Is data obtained from the internet primary or secondary data?
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Secondary data, because it was already collected by someone else.
If you directly observe and record events yourself (like counting cars), is this primary or secondary data?
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Primary data, because you are collecting the observations firsthand.
If you watch a documentary to gather information, is this primary or secondary data?
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Secondary data, because the documentary was created by someone else and you are using their collected information.
If you weigh objects yourself to collect measurements, is this primary or secondary data?
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Primary data, because you are conducting the measurements yourself.
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