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Maths Is Not A Mystery is a GCSE revision course that aims to demystify maths by offering down to earth explanations, common sense links to the real world and a series of practice questions with answers.
We are looking at Moving Averages in this book. A moving average is a combination of mean averages, rolling through time. The purpose of a moving average is to provide a smoother picture of any trends that might appear from the data. It does this by levelling out any obvious high points or low points in individual data.
The trend line created by a moving average can also be used to make predictions about the future performance of the data.
All of this is covered in the book, along with plenty of worked, and fully explained examples.
Customer Reviews, including Product Star Ratings help customers to learn more about the product and decide whether it is the right product for them.
To calculate the overall star rating and percentage breakdown by star, we don’t use a simple average. Instead, our system considers things like how recent a review is and if the reviewer bought the item on Amazon. It also analyzed reviews to verify trustworthiness.
