Although Six Sigma sounds like a distant star in a galaxy far
, far away, the term is very easy to explain, once you know sigma is the character in the Greek alphabet that is used in mathematical statistics to identify a standard deviation.I am an experienced Chartered Surveyor, Home Inspector and Domestic Energy Assessor in southern England. I wish to pass on my business and professional acumen and can do this by delivering a series of seminars on the "craft of house surveying".