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 analyses reviews to verify trustworthiness.
Complete analysis on each and every chapter along with a wide selection of question answers. Key points and concepts can be used for quick revision and sample papers for practice. The proper diagram helps in understanding even difficult and tricky question answers. Loved this sample paper.