Strange. The document claims it's paraphrasing two sources, one of which is linked[0] in the document itself. The linked source does contain the diagram your

Strange. The document claims it's paraphrasing two sources, one of which is linked[0] in the document itself. The linked source does contain the diagram your quote is associated with, but not the (agreed, questionable) commentary about probabilities. [0] - http://www.knowledge.scot.nhs.uk/media/CLT/ResourceUploads/1006891/Good_Practice_Guide_Data_Management_run_chart_rules.pdf http://www.knowledge.scot.nhs.uk/media/CLT/ResourceUploads/1...