Does anybody remember an old coursework task on the EdExcel syllabus called something like Bugs? I seem to remember the sheet had three faces on it: a happy face, a sad face, and a so-so face. It was to do with creating tree diagrams. I can not find it on the internet, and not in UK, so can't just ask one of those teachers who hoards everything. Anybody remember the investigation? Does anybody have a pdf copy of it? Any help much appreciated.