Data Scientist Certification Exam Question Collection [Literacy Level] Compatible, 2nd Edition Revised edition fully compatible with the "Skill Check List ver. 5" which indicates the latest exam scope. <Condition> Purchased on 2025/6/14. Used for about 3 days. No writing or folds. Can be used without any problems for exam preparation. Although there are no issues with use, please refrain from purchasing if you are sensitive to used items. <Impressions of this book> I will humbly share the seller's impressions of this book. I was studying using other reference books, but there were parts that were not covered, so I purchased this book at a bookstore 3 days before the exam. In my personal opinion, I'm glad I bought it. I have summarized the good points of this book below. ・The difficulty level of the certification exam questions is similar. ・Comprehensively covers the questions within the exam scope, allowing you to identify your weaknesses. ・The explanations are easy to understand. ・Covers mathematical problems such as differential and integral calculus, matrices, and vectors. I hope this helps with your purchase and exam success. If purchased on a weekday during the exam period, I will ship it the same day.