菜妹，你对一个又老又没工作的人花了这么

多笔墨让我感动得流泪。
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.
通过你的phd一席话我才知道所有的统计分支都要懂。当我问你问题时，我还以为categorical data analysis 懂了就不用学nonparametric 或者 nonlinear models or bayes 了。
你是统计里的莎士比亚。
对了，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.
非常感谢你对无知又好学的老人给予诚恳的帮助。