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Mathematics / Year 5 / Statistics
Curriculum content descriptions
acquire, validate and represent data for nominal and ordinal categorical and discrete numerical variables, to address a question of interest or purpose using software including spreadsheets; discuss and report on data distributions in terms of highest frequency (mode) and shape, in the context of the data (AC9M5ST01)
Elaborations
- recognising that ordinal data is a form of categorical data even though the data being collected might be numbers; for example, a rating scale using numbers \(1 – 5\) to represent the categories people can choose from when asked, “What rating would you give this film out of \(5\)?”
- determining the mode for a set of data and discussing that there may be more than one mode
- identifying the best methods of presenting data to illustrate the results of investigations and justifying the choice of representations
- acquiring data through chance experiments, discussing and reporting on the distribution of outcomes and how this relates to equal and unequal outcomes
- using digital systems to validate data; for example, recognising the difference between numerical, text and date formats in spreadsheets; setting data types in a spreadsheet to make sure a date is input correctly
- exploring how travel and online shopping websites and apps collect ordinal data from users to provide customer satisfaction and popularity ratings, and how they use recommendation algorithms to assist customers in travel planning or retail purchasing
- investigating data relating to Australia’s reconciliation process with First Nations Australians, posing questions, discussing and reporting on findings
General capabilities
ScOT terms
Discrete data, Categorical data, Data analysis, Data collection, Mode