Create and compare numerical displays
Practise online with Next and Previous buttons, worked explanations and a report of the questions to review.
Log in to continueUse dot plots and stem-and-leaf plots to discuss shape, centre, spread and extremes.
One-question preview
Choose one answer
Try this sample, or continue to the online quiz for a practice set with Next and Previous buttons.
What is the median of the five observations in this dot plot?
Read the diagram description
A dot plot with values 31, 32, 33, 33, 36.
Show worked steps
Answer: 33
- The middle is the third observation in order.
- That observation is 33.
This is a question from this topic’s quiz. Preview answers are not saved.
Scratchpad
Working out
Draw with a finger, pen or mouse, or type your working below.
Your working stays on this page. It is not submitted or saved, and clears when you leave or reload.
Curriculum reference
Victorian Curriculum F–10 Version 2.0
Pi Leo practice scope
Use dot plots and stem-and-leaf plots to discuss shape, centre, spread and extremes.
Read the official VCAA curriculum description (VC2M7ST02)
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.
- VC2M7ST02-C01Order the observations represented by a display before finding the median. A graph should retain every data value it claims to show.
- VC2M7ST02-C02The mean uses all values; compare it with the median when the distribution has a long tail or an extreme observation.
- VC2M7ST02-C03Range and mode describe different aspects of a distribution. Discuss clusters, gaps and possible outliers as well as numerical summaries.
- VC2M7ST02-C04Creating different numerical displays, including dot and stem-and-leaf plots, and comparing distribution shape/outliers using software where appropriate.
Learn with worked examples
Help with this topic
Skills in this topic
Traceable coverage
Subskills
These practice subskills map to the curriculum topic. Guided activities cover skills beyond multiple-choice questions.
Descriptor-derived subskills
- D01Read and calculate the middleOrder the observations represented by a display before finding the median. A graph should retain every data value it claims to show.
- D02Compare an average with the shapeThe mean uses all values; compare it with the median when the distribution has a long tail or an extreme observation.
- D03Compare shape, centre and spreadRange and mode describe different aspects of a distribution. Discuss clusters, gaps and possible outliers as well as numerical summaries.