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.
Fantastic story thank you. I really enjoyed this book and the way you incorporated the what if’s and how any decisions would affect the outcome. They finally managed to sort the issues and get their hea. I highly recommend this book to everyone.