Amazon calculates a product’s star ratings using a machine learned model instead of a raw data average. The machine learned model takes into account factors including: the age of a review, helpfulness votes by customers and whether the reviews are from verified purchases.
Love this book. It teaches me that I need to watch my own habits which enables me to identify my own bad habits. From there I have been able to slowly replace my bad habits with good habits. The knowledge gained from this book has certainly boosted my confidence and given me a clear direction of at least how to be successful. Many thanks to Michael and Tom, absolutely down to earth authors.