• Mathematics
  • Year 8


approx. 12 hrs

3 topics

30 concepts

Become skilled at analysing and representing Data to improve your results.

Available in


Year 8 Data is part of Statistics and Probability in the Australian curriculum. We show students how to collect data, identify constraints when collecting data, and critically analyse bias in surveys and other forms of data gathering. Students learn about numerical and categorical data, calculate measures of centre (mean, median & mode) and range, and learn how to read and create different types of graphs and tables.

Topics & Concepts We Cover

This learning program is made up of the following 3 topics, broken down into 30 concepts.

  • Data Collection 9 concepts

    1. Describe how a random sample may be selected in order to collect data

    2. Collect and record information from a survey

    3. Identify the difference between data collected from primary and secondary sources

    4. Interpret information collected from a survey

    5. Construct appropriate survey questions

    6. Discuss constraints that may limit the collection of data or result in unreliable data

    7. Discuss bias in the selection of a sample

    8. Investigate techniques for collecting data including census, sampling or observation

    9. Recognise variables as categorical or numerical (discrete or continuous)

  • Calculating Statistics 5 concepts

    1. Investigate the effect of outliers on the mean, median, mode and range using small data sets

    2. Calculate the mean of ungrouped data sets

    3. Identify the mode of ungrouped data sets

    4. Calculate the median of ungrouped data sets

    5. Calculate the range of ungrouped data sets

  • Data Representation 16 concepts

    1. Construct a column graph

    2. Recognise and justify which measure of central tendency is appropriate for the data type

    3. Interpret a column graph

    4. Construct divided bar graphs

    5. Construct sector graphs

    6. Construct line graphs

    7. Construct dot plots

    8. Interpret divided bar graphs

    9. Interpret dot plots

    10. Interpret line graphs

    11. Interpret sector graphs

    12. Construct stem-and-leaf plots

    13. Interpret stem-and-leaf plots

    14. Construct a frequency histogram and polygon for ungrouped data

    15. Use a tally to organise data into a frequency distribution table

    16. Identify and explain which graph types are suitable for the type of data being considered

What you'll get

Learning Content

  • A customised learning plan to suit your needs, adapting to your pace as you learn, progress and achieve mastery
  • All the content required to help you master the syllabus, including theory, worked examples, exam preparation and practice questions

An Expert Tutor

  • We match you to a private, expert tutor who is right for your needs and goals
  • Our tutors are talented, tested, top ATAR achievers and subject experts
  • During each session, your tutor guides you through your learning program, providing real-time, live expert tutoring in Data


  • Access information at every stage showing what's been mastered, what areas need to be worked on and what's next
  • You and your parents receive a comprehensive feedback report after every session
  • Every session is recorded and available for you to watch at any time, allowing you to review what was covered

Ready to start this program?

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Starting at

$49(inc. GST)

per session

Fully flexible

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Access to practice questions

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