Collecting and Representing DataAQA GCSE Maths: Flashcards
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Question
What is primary data?
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- What is primary data?
- Data collected first-hand by the person carrying out the investigation.
- What is secondary data?
- Data that has already been collected by someone else.
- What is discrete data?
- Data that can only take specific, separate values.
- What is continuous data?
- Data that can take any value within a given range.
- Which diagram is best for categorical data showing proportions of a whole?
- A pie chart.
- Which diagram is best for ungrouped discrete numerical data?
- A vertical line chart.
- Which diagrams are best for time series data?
- Tables and line graphs.
- Is 'number of goals scored in a match' discrete or continuous?
- Discrete — it can only take whole number values.
- Is 'time taken to finish a race' discrete or continuous?
- Continuous — it can take any value within a range.
- Name three diagrams suitable for categorical data.
- Bar charts, pie charts and pictograms.