Main Category Business All Categories Language Music Art & Design Hobby Dance & Ballet Yoga/Fitness/Sports Lifestyle Business Academic Tutoring IT & Programming Fashion & Beauty Counseling Spirituality Sub Category All All Categories Investment & Finance Career Advancement Qualifications Testing Coaching Small Business Consulting Book Keeping Writing&Naming General Business Post Language español All Languages English 日本語 한국어 简体中文 繁體中文 Italiano español Deutsch Русский Svenska Français Português POPULAR COLUMNS Nothing to show. WEEKLY TOPIC ARTICLES Nothing to show. View: 2451 | May 20, 2020 Actuary Semi 【ミニクイズ】exp(-x^2)の積分 ∫exp( - x^2 )dx x:-∞ → +∞の定積分として正しいものは?① π② √π③ π / 2④ どれでもない正解... View: 2127 | May 17, 2020 Actuary Semi 【ミニクイズ】確率変数の和の分散 2つの確率変数X,Y(互いに独立とは限らない)の和の分散 V[ X + Y ] として正しいものは?ただし、Cov[ X , Y ]をXとYの共分散とする。① V[ X ] + V[ Y ]② ...