Data analysis
Mathematics K–10 (2022) · Stage 4 · View this focus area on the NESA NSW Curriculum website ↗
Outcomes
MA4-DAT-C-02 analyses simple datasets using measures of centre, range and shape of the dataContent dot points
Each dot point has its own page with resources matched to it.
Calculate and compare the mean, median, mode and range for simple datasets
- Calculate the mean (x‾) of a set of data using digital tools 1 resource · 1 interactive/game
- Calculate and describe the mean, median, mode and range of a dataset 10 resources · 3 interactive/game
- Classify the mean, median and/or mode as measure(s) of centre to represent the average or typical value of a dataset 2 resources · 2 interactive/game
- Describe and interpret data displays using mean, median and range
- Identify and describe datasets as having no modes (uniform), one mode (unimodal), 2 modes (bimodal) or multiple modes (multimodal)
- Identify the range as a measure of spread to describe variation in a dataset 5 resources · 1 interactive/game
- Compare simple datasets using the mean, median, mode and range
Interpret the effect individual data points have on measures of centre and range
- Informally identify clusters, gaps and outliers in datasets and give reasons for their occurrence in the context of the data
- Identify and explain the impact of adding or removing data values that are clustered at one end of a dataset on the measures of centre 1 resource · 1 interactive/game
- Identify and explain the impact of outliers on the measures of centre and range 2 resources · 2 interactive/game
- Determine and justify the most appropriate measure of centre to summarise the data in its context
Analyse datasets presented in various ways and draw conclusions
- Identify and describe the shape and distribution of a dataset using the terms symmetrical, negatively skewed and positively skewed 1 resource · 1 interactive/game
- Define a census as a study of every unit, everyone or everything in a population
- Define a sample as a subset of units in a population selected to represent all units in a population of interest 3 resources · 1 interactive/game
- Draw conclusions and make informed decisions about data gathered using data-collection techniques, including census and sampling, which is then presented in tables, graphs and charts
Focus area resources
- Unit/PlanningStage 4 Unit 2 – making decisions (sample unit of learning)
- Unit/PlanningStage 4 Unit 9 – shape and skew (sample unit of learning)
Stage 4 planning resources
Stage- or course-wide documents (scope and sequences, guides) that cover this focus area alongside others.
- Unit/PlanningSample scope and sequence: Stage 4 core (NESA no. 11)
- Unit/PlanningStage 4 – sample scope and sequence
- Unit/PlanningStage 4 – stage based – sample scope and sequence