KS3 Maths worksheets and activities. The topic of Quantitative Data from the Year 7 book of the Mathematics Enhancement Program. For information about these resources and an index for the whole collection please visit http://www.mrbartonmaths.com/CIMT.htm Planning and Collecting Data, Interpreting results and comparing data. Keywords: Average, Mean, Median, Mode, Spread, Range, Dispersion, Moving Average, Central Tendency.