Mathematics / Year 9 / Statistics and Probability / Data representation and interpretation

View on Australian Curriculum website Australian Curriculum, Assessment and Reporting Authority
Curriculum content descriptions

Construct back-to-back stem-and-leaf plots and histograms and describe data, using terms including ‘skewed’, ‘symmetric’ and ‘bi modal’ (ACMSP282)

Elaborations
  • using stem-and-leaf plots to compare two like sets of data such as the heights of girls and the heights of boys in a class
  • describing the shape of the distribution of data using terms such as ‘positive skew’, ‘negative skew’ and 'symmetric' and 'bi-modal'
General capabilities
  • Numeracy Numeracy
ScOT terms

Stem and leaf plots,  Histograms,  Skewness

Interactive resource

Graph investigator: homework hours

Does the average number of hours spent on homework increase with year level? Select the appropriate data sets and choose a useful graph type to investigate this question. See the data presented in the chosen graph type and draw a conclusion about this question. Explore different graph types such as scatter plots, line graphs ...

Interactive resource

Graph investigator: hand preference

Do left-handed and right-handed students have different reaction times? Select the appropriate data sets and choose a useful graph type to investigate this question. See the data presented in the chosen graph type and draw a conclusion about this question. Explore different graph types such as scatter plots, line graphs ...

Teacher resource

Comparing data

This is a website designed for both teachers and students that addresses data comparison from the Australian Curriculum for year 9 students. It contains material on comparing data by developing questions, conducting data collection, displaying data and exploring and interpreting that data using a range of strategies. There ...

Interactive Resource

Laptop wrap: Surveying statistics

In this laptop-friendly resource, students summarise the statistical process, design a sample survey and design a community brochure that displays large data sets using Excel charts.

Interactive resource

Graph investigator: getting to school

What is the most common travel time to school for students? Select the appropriate data sets and choose a useful graph type to investigate this question. See the data presented in the chosen graph type and draw a conclusion about this question. Explore different graph types such as scatter plots, line graphs and histograms. ...

Teacher resource

Statistics and Probability - Data representation and interpretation (Investigating a Kale crop)

This is a teacher guide providing suggestions for Maths activities based on a scenario in which a farmer carries out an experiment to compare the profitability of two varieties of kale and investigate the effectiveness of applying fertiliser to the kale crop. It provides authentic questions for students to answer using ...

Interactive resource

Graph investigator: home internet access [ESL]

What percentage of students have internet access at home? Select the appropriate data sets and choose a useful graph type to investigate this question. See the data presented in the chosen graph type and draw a conclusion about this question. Explore different graph types such as scatter plots, line graphs and histograms. ...

Interactive resource

Graph investigator: reaction time

Do girls have faster reaction times than boys? Select the appropriate data sets and choose a useful graph type to investigate this question. See the data presented in the chosen graph type and draw a conclusion about this question. Explore different graph types such as scatter plots, line graphs and histograms. This learning ...

Interactive resource

Graph investigator: home internet access

What percentage of students have internet access at home? Select the appropriate data sets and choose a useful graph type to investigate this question. See the data presented in the chosen graph type and draw a conclusion about this question. Explore different graph types such as scatter plots, line graphs and histograms. ...

Interactive resource

Graph investigator: getting to school [ESL]

How long do most students take to get to school? Select the appropriate data sets and choose a useful graph type to investigate this question. See the data presented in the chosen graph type and draw a conclusion about this question. Explore different graph types such as scatter plots, line graphs and histograms. This learning ...

Interactive resource

Exploring probability

Look at the probability of a snowboarder choosing any one of six ski runs down a mountain. Compare expected probabilities with experimental results. Examine outcomes illustrated in graphs and probabilities expressed as fractions and percentages. Notice there is likely to be a greater variation between expected and actual ...

Teacher resource

TIMES Module 7: Statistics and Probability: data investigation and interpretation, year 9 - teacher guide

This is a 26-page guide for teachers. In year 8, students developed an understanding of the nature of censuses, surveys and observational studies. Year 9 develops this understanding further, and introduces examples of experimental investigations with an emphasis on random allocation of the combinations of experimental conditions. ...

Interactive resource

Graph investigator: reaction time [ESL]

Do girls have faster reaction times than boys? Select the appropriate data sets and choose a useful graph type to investigate this question. See the data presented in the chosen graph type and draw a conclusion about this question. Explore different graph types such as scatter plots, line graphs and histograms. This learning ...

Interactive resource

Graph investigator: hand preference [ESL]

Do left-handed and right-handed students have different reaction times? Select the appropriate data sets and choose a useful graph type to investigate this question. See the data presented in the chosen graph type and draw a conclusion about this question. Explore different graph types such as scatter plots, line graphs ...

Interactive resource

Graph investigator: homework hours [ESL]

Does the average number of hours spent on homework increase with year level? Select the appropriate data sets and choose a useful graph type to investigate this question. See the data presented in the chosen graph type and draw a conclusion about this question. Explore different graph types such as scatter plots, line graphs ...