'%EB%AC%B4%EC%9E%91%EC%9C%84%20%ED%91%9C%EB%B3%B8%20%EB%8D%B0%EC%9D%B4%ED%84%B0%20%EC%B6%94%EC%B6%9C%20sample_n%28%29%20sample_frac%28%29'에 해당되는 글 0건