Statistics: Analysing Data using Mode, Median, Mean and Range. Clearly demonstrates the methods used to calculate each and contains both a worksheet and a separate answer sheet. The first two answers include the working out and some other answers include partial working out, to aid clarification. The questions are of varying level of difficulty and should prepare students for anything they are likely to encounter in a GCSE exam. Many hints, tips and checks are also included. This could be useful, as the basis of a lesson observation, enjoy!