2. subs_L01-1

https://courses.edx.org/courses/course-v1:MITx+6.041x_4+1T2017/course/#block-v1:MITx+6.041x_4+1T2017+type@chapter+block@Unit_1_Probability_models_and_axioms Introduction to Probability - The Science of Uncertainty MIT的公开课，方便自己学习，欢迎投币！