PREVIOUS ANNOUNCEMENTS

• Welcome to 6.262!


• Course syllabus and Problem Set #1 are now available.


• Recitations take place M 11-12 and M 5-6.   Feel free to show up at either one.   Ignore the registrar's assignments.


• There will be no recitations on Monday, Feb 9.


• Next Monday (Feb. 16) is a holiday and the following Tuesday (Feb. 17) follows the Monday schedule.   So, don't forget to show up for the lecture and recitations.


• Chapters 1 and 2 of the notes are now available!


• A typo in Problem 2b of Problem Set #1 has been corrected. The limit is in increasing n instead of increasing x.


• Paper copies of handouts, lecture slides, problem sets, solutions sets, etc. are available in the racks outside 36-872.
  Please help us kill fewer trees by grabbing a printed copy rather than printing your own.


• Prof. Gallager's office has changed to 36-525. Please make a note of it on your syllabus.


• Due to a change in schedule (Tuesday --> Monday), there will be no office hours next Tuesday, Feb 17.
  The recitations will address select portions of the problem set, but please budget in for the reduced help by starting on your problem set early.


• Clarifications and corrections regarding Problem Set 2:
  • Q1: \alpha>0. Also, there is no part c), the hint refers to part b).
  • Q3 c-f): g is continuous.
  • Q6 c): there will be two triplets with probability 1/4 and two with probability zero. The remaining triplets will have probability 1/8.


• Clarifications and corrections regarding Problem Set 3:
  • Q3: K is not a random variable. It's some fixed non-negative integer whose value is not particularly important.
          Note that it is rewarding to do part e) without using the Bayes' rule.
  • Q4: Assume that the bus and customer arrival rates are given per hour, i.e. an average of \mu customers per hour, etc.
  • Part d) of Q5 is optional.
  • Parts e), f), g) of Problem D are due next week, with P-set 4. If you have not received an email about this, email Natasa to get added to the mailing list.
  
  
• Chapters 1,2 and 3 of the notes are now available! Chapters 1 and 2 have been revised, but you're welcome to continue using the previous versions, should you wish to do so.


• Prof. Wyatt's office hours have resumed.


• Clarifications and corrections regarding Problem Set 4:
  • Q4: Recall that a defective random variable is defined in Chapter 1, p.13 of your notes (p.14 in the new version).


• Chapters 1 through 4 of the notes are now available!


• Clarifications and corrections regarding Problem Set 5:
  • Q3:
    • Parts a) and d): If you can give us an intuitive argument for why J is finite w.p.1 (needed in part a) and why E(J) is finite (needed in part d), we will be happy to take it.
      However, make sure to take a look at the solution on Wednesday to to learn how to show this formally.
    • Part e): We meant the limit of B going to -infinity.
  • Q4:
    • Part b): There is no g(0) term in the final expression.
    • Part c) refers to eqs. (3.7) and (3.8) of the notes, rather than to Section 3.8.


• Prof. Gallager's office hour on March 12 is canceled. His office hours resume on March 19.


• Problem Set 6 is now available.


• Chapters 1 through 5 of the notes are now available!


• Problem Set 7 is now available. It is due April 1, in class.


• Natasa's office hours are cancelled for Tuesday, March 24.


• Problem Set 7 with improved hints and wording.
Further corrections:
• Q4: rho = p/(1-p). We ask you to pay close attention to the case when p=1.
  
• Solutions to the practice quiz are now available.


• The link to the PS7 Solution has been fixed.


• Prof. Wyatt will have extra office hours today (Sunday), 2:30-4:30 in 36-864.


• There will be no recitations this Monday (4/06). Treat those time slots as extra office hours. (11am and 5pm in 34-301)


• Prof. Gallager will have extra office hours Monday (4/06), 4:00-6:30 in 36-525.


• Prof. Gallager will be giving a quiz review in the Monday lecture (4/06).


• Chapter 6 of the notes, with some corrections to chapters 1-5, is now available.


• The quiz is tonight, at 6pm, in 4-270.


• Quiz stats: avg = 78.6, std= 11.6, median = 82.5.


• Lectures 16 through 20 are now available.


• Chapter 7 parts I and II and part III of the notes are now available.


• The final exam will take place on Thursday, May 21, 9am-12noon at the Johnson Athletic Centre (upstairs).


• Midterm Questions and solutions are now available.


• Complete Chapter 7 of the notes.


• Prof. Wyatt's office hours are cancelled on 5/5. His regular office hours resume next week.


• Problem Set 11, Exercise 7.15 c): the quantity A should be in the exponent, as it is in part b).


• Problem Set 12 (not due) has been posted.


• Please fill out the HKN Course Evaluation for this year's edition of 6.262. Your answers are anonymous and extremely helpful.


• A few typos in Problem 2 of PS12 have been fixed.


• PS12 solution is now available.


• Comments about the final exam.


• A practice final exam is now available. Solutions will be posted this Saturday.


• Section 7.7.1 (stopping times relative to a process) should be added to the list of the topics not covered on the final exam.
  However, the remainder of section 7.7 (stopping times and stopped processes) remains exam material.


• Solution to the practice final is now available.