Handling data

 

Specifying a problem, planning and collecting data
	Given a problem that can be addressed by statistical methods, suggest possible answers.
	Decide which data would be relevant to an enquiry and possible sources.
	Plan how to collect and organise small sets of data; design a data collection sheet or questionnaire to use in a simple survey; construct frequency tables for discrete data, grouped where appropriate in equal class intervals.
	Collect small sets of data from surveys and experiments, as planned.

Processing and representing data, using ICT as appropriate
	Calculate statistics for small sets of discrete data: find the mode, median and range, and the modal class for grouped data; calculate the mean, including from a simple frequency table, using a calculator for a larger number of items.
	Construct, on paper and using ICT, graphs and diagrams to represent data, including: bar-line graphs; frequency diagrams for grouped discrete data; use ICT to generate pie charts.

Interpreting and discussing results
	Interpret diagrams and graphs (including pie charts), and draw simple conclusions based on the shape of graphs and simple statistics for a single distribution.
	Compare two simple distributions using the range and one of the mode, median or mean.
	Write a short report of a statistical enquiry and illustrate with appropriate diagrams, graphs and charts, using ICT as appropriate; justify the choice of what is presented.

Probability
	Use vocabulary and ideas of probability, drawing on experience.
	Understand and use the probability scale from 0 to 1; find and justify probabilities based on equally likely outcomes in simple contexts; identify all the possible mutually exclusive outcomes of a singe event.
	Collect data from a simple experiment and record in a frequency table; estimate probabilities based on this data.
	Compare experimental and theoretical probabilities in simple contexts.

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