Stochastic Modelling Exam Preparation Exercises/Questions

[chenci]

Hi, I will be posting my questions regarding this course in this thread. Feel free to contribute to my learning process and I hope you also learn something new.

 

[chenci]

Here is the problem set for day 1.

 

[chenci]

Here is the problem set for day 1.

I have managed to solve the exercises from 1 to 3. I am struggling at exercise 4 and 5, can anyone help me? You can look up the image below my progress.