We are pleased to present the CBSE Data Science Class 12 Solved Papers for the academic years, compiled under subject code 844. This book is designed to be an invaluable resource for students preparing for their board exams, offering a collection of actual CBSE exam papers along with detailed solutions crafted by subject matter experts.As Data Science continues to evolve as a critical field of study, it demands not only a strong grasp of theoretical concepts but also the ability to apply this knowledge in practical scenarios. This book aims to bridge the gap between theory and practice by providing students with real exam questions and step-by-step solutions that align with the CBSE marking scheme.Key Features of This Book:Authentic Exam Papers: The book includes the exact question papers from the CBSE board exams of 2023 and 2024, ensuring that students have access to the most current and relevant material.Comprehensive Solutions: Each question is solved in detail, providing clear explanations and guiding students on how to approach different types of problems effectively.Marking Scheme Insights: Solutions are aligned with the official CBSE marking scheme, offering students a clear understanding of how marks are allocated, which helps them focus on key areas to maximize their scores.Exam Strategy and Tips: The book includes strategic advice on time management, common mistakes to avoid, and tips on how to present answers to score higher marks.Thorough Syllabus Coverage: Every major topic within the Data Science syllabus is covered, making this book a comprehensive tool for exam preparation.This collection of solved papers is intended to serve as both a practice tool and a guide for students aiming to achieve excellence in their CBSE Data Science exams. By working through these papers, students will not only enhance their understanding of the subject but also gain the confidence needed to excel in the examination hall.We hope this book will be an essential companion in your journey toward academic success, providing you with the tools and insights necessary to master the subject of Data Science.We wish all students the very best in their preparations and in their forthcoming exams.We believe that this book will be an invaluable resource for Class 12 students as they prepare for their Data Science board exams. By diligently working through these unsolved papers, students will not only improve their exam performance but also deepen their understanding of Data Science, laying a strong foundation for future studies and careers in this rapidly evolving field. We wish all students the best of luck in their exams and hope that this book serves as a crucial tool in their academic journey.