菜妹，你對一個又老又沒工作的人花了這麽

多筆墨讓我感動得流淚。
you have just saved 5 years of my life. I decided not to study biostats after reading your post.
No, I do not want to get an ms because I can't afford the tuition. I will study by myself.
通過你的phd一席話我才知道所有的統計分支都要懂。當我問你問題時，我還以為categorical data analysis 懂了就不用學nonparametric 或者 nonlinear models or bayes 了。
你是統計裏的莎士比亞。
對了，我昨晚在amazon order 了一本intro to prob and stats. It should come in 2 days. I can't wait to get it.
非常感謝你對無知又好學的老人給予誠懇的幫助。