I'm not a major, but I just took this lecture and passed the 8th practical exam with a perfect score! I just got my preliminary score, so I'm leaving a review right away in a good mood. ㅎ ㅎ I listened to all the lectures, repeated past exams and mock problems, and studied by solving the Kaggle problems that you taught me. You explained it in an easy way, and if you left a question, you answered it in detail, so I think it's not difficult even for a non-major. Thank you!!