• 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.

  • 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. Interpret a column graph

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

    4. Construct divided bar graphs

    5. Construct sector graphs

    6. Construct line graphs

    7. Interpret divided bar graphs

    8. Interpret sector graphs

    9. Interpret line graphs

    10. Construct dot plots

    11. Interpret dot plots

    12. Construct stem-and-leaf plots

    13. Interpret stem-and-leaf plots

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

    15. Construct a frequency histogram and polygon for ungrouped data

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

  • Data Collection 9 concepts

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

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

    3. Discuss bias in the selection of a sample

    4. Construct appropriate survey questions

    5. Collect and record information from a survey

    6. Interpret information collected from a survey

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

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

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

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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We'll book in your first session and match you to an expert tutor

Starting at

$49(inc. GST)

per session

Fully flexible

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Access to practice questions

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