I passed with 85 points!!! I had purchased another person's Big Data Analysis Practical Exam material from the 100 Million Views N-Job site for almost 100,000 won. It turned out there were only past questions from the 2nd, 3rd, and 4th rounds, and I felt that consistent management was lacking. So, additionally, with only about 2 weeks left, I purchased 'Toe-Ttan-Jit' again. Because you taught step-by-step, it felt much less difficult compared to other lectures. Although I felt like I was learning much more easily, looking back, I realized I was able to solve problems on my own. It's not that you only teach easy things; it seems you just teach in an easy way. Kaggle Playground was good too. If you just follow this lecture... you'll unconditionally pass... seriously... I thought about giving up on Subject 3 because I really couldn't understand it, but with ols logit, I was lucky enough to pass this time. Thank you, Instructor!