Plan a small statistical investigation
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A class wants to investigate lunchtime activities. Which is a question that data from class members could answer?
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Answer: How many class members choose each option for lunchtime activities?
- A statistical question allows different responses and can be answered by collecting them.
- Name the group and the variable before designing the collection.
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Curriculum reference
Victorian Curriculum F–10 Version 2.0
Pi Leo practice scope
Ask a clear question, collect relevant data and communicate a supported finding.
Read the official VCAA curriculum description (VC2M5ST03)
These quizzes practise concepts within this topic. Multiple-choice answers alone do not demonstrate drawing, conducting an investigation or using a digital tool.
Activities to practise beyond the quiz
- Supported by the guided activity; selecting an MCQ does not demonstrate this action.
- Supported by the guided activity; selecting an MCQ does not demonstrate this action.
- Supported by the guided activity; selecting an MCQ does not demonstrate this action.
- VC2M5ST03-C01Name the group, what you want to find out and the response you will record. Ask a neutral question with balanced choices. For observations, specify where, when and for how long. Comparable conditions make comparisons easier to interpret.
- VC2M5ST03-C02Use one clear recording method. Check the records against the collection plan and keep one valid response per person when that is the design. A labelled column graph can compare category frequencies. Keep valid unusual responses; only correct errors you can establish.
- VC2M5ST03-C03Describe the main pattern and any ties. Keep your finding about the group that supplied the data. Check that the question you asked is actually answered by the data you collected. A table of preferences does not by itself explain why people chose them.
- VC2M5ST03-C04Planning and conducting an investigation, selecting a display and communicating contextual findings.
- VC2M5ST03-C05Actually collecting observations or survey responses and using spreadsheet software.
- VC2M5ST03-C06Creating and communicating an original statistical investigation, rather than selecting an MCQ response.
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Subskills
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Descriptor-derived subskills
- D01Ask a question data can answerName the group, what you want to find out and the response you will record. Ask a neutral question with balanced choices. For observations, specify where, when and for how long. Comparable conditions make comparisons easier to interpret.
- D02Collect, check and displayUse one clear recording method. Check the records against the collection plan and keep one valid response per person when that is the design. A labelled column graph can compare category frequencies. Keep valid unusual responses; only correct errors you can establish.
- D03Explain what you foundDescribe the main pattern and any ties. Keep your finding about the group that supplied the data. Check that the question you asked is actually answered by the data you collected. A table of preferences does not by itself explain why people chose them.