Explore variation in the number of matches packed into a matchbox. Check whether a machine is packing matchboxes within acceptable limits. Examine an array of results. Sort the data into four equal groups. Identify the range, median and quartile values from the table of data. Use the data to build a boxplot. Plot the variation by building a sequence of boxplots. Identify conclusions supported by the evidence. This learning object is one in a series of nine objects.
Objective
1. Students identify the maximum, minimum, median and quartiles from a set of data.
2. Students construct and interpret boxplots.
3. Emphasises the need for data to be sorted before analysis.
4. Highlights maximum, median, quartile and minimum values in an array.
