Showing posts with label ST2131. Show all posts
Showing posts with label ST2131. Show all posts

4 Jul 2014

AY2013-2014 Semester 2 Module Review

Well okay, besides having been occupied for the past month, I did very badly this semester so I needed quite a bit of time to get back up to write this post. Nevertheless, I shall try my best to remain objective so as to benefit the readers of this blog.


CS1010E Programming Methodology

This module was taken by Prof Joxan Jaffar. Apparently, he taught fairly well at the start of the semester, only to deteriorate drastically towards the end. The language taught is C. 

Weightage
Sit-in labs: 50%
Midterms: 10%
Finals: 40% 

This module was basically open-book for every single graded component though I should think that wouldn't help much for a computing module. The main topics covered were control flow, arrays, pointers and structures just like for any other introductory computing module. Sit-in labs were held every odd week (starting from Week 5 onwards) and take-home labs were assigned every other week. If you can do the take-home labs, you might probably consider skipping the lab sessions during the even weeks.

The format of the midterms was as follows: it was a multiple-choice paper comprising of 20 questions; each question has a string of code and you're supposed to interpret it and then choose the option that has the correct output. I actually found it pretty meaningless a paper by the way. But the questions were tricky; sometimes it might just take one semi-colon to make a difference in the solution so exercise extra caution and do not overlook any details. I only got 13/20 which is pretty much below the median I guess. But that is just because I totally neglected one or two topics and there were actually close to 6 questions on those topics so I should think it wouldn't be hard to get above 15. You'll know your midterm results very soon since they'll upload the solutions on the same day itself.

Sit-in labs got progressively harder; there were basically 5 sit-in lab sessions where each subsequent lab was worth 1 more percent than the previous one starting with 8% and ending with 12%. I got A for the first two (but really, anyone can get A for the first one) and B for the remaining ones. That essentially put me in the 50th percentile already. 

Finals was just, bad; pointers, structures everywhere. There were two sections in the finals. Section A was like the midterms just that it was no longer MCQ so that you had to write the output in the blank space provided. There were 15 questions on that. Section B was then testing students on their ability to write codes so as to solve the problems presented in the questions. Personally, I thought some of the questions were quite different from those in the sit-in labs but if you're good at computing, it shouldn't make much of a difference. I basically screwed up both sections and I gave up halfway to the extent that I scribbled some nonsense in Section A. That was how badly I wanted to end this and it doesn't really help that it was my first paper. 

Result: B-
Yes, first B- though it was kinda expected. My advice is to try and get As for all the labs or at least, 4 out of 5. That can secure you at least a B+, I hope. I actually didn't do much practice for this module except  for the take-home labs. In fact, I was quite passive in the sense that I believed practice would only take you so far for a computing module. I am just glad to get over this module which was pretty much useless as C is just obsolete already. If given a choice, I would have loved to take IT1006 but no, CS1010E is a core module for Stats majors.


EC3312 Game Theory and Applications to Economics

This module was taught by Prof Sun Yeneng who was seemingly from the Maths department in FOS. His lectures were so-so as most of the things in the notes were taken from the textbook. I gave up attending them after the first one. Textbook is essential: A Primer in Game Theory by Gibbons.

So there were 4 themes altogether: (1) Static Games of Complete Information, (2) Dynamic Games of Complete Information, (3) Static Games of Incomplete Information and (4) Dynamic Games of Incomplete Information.

Weightage
Tutorial attendance and participation: 5%
Assignments: 10%
Midterms: 35%
Finals: 50%

Basically, attend all tutorials and present once to secure the 5% component, There were 2 assignments, each worth 5%. Assignments were very easy so most people should have no problem securing full marks for them.

The bell curve for midterms was steep; the median was 27/35 and it doesn't help that there are a few PhD students taking this module. So I got only 29 but really, the midterms was actually very easy. The reason why I didn't get above 29 was because there was this particular concept that I didn't clear up before taking the midterms as I started studying only one or two days before the test itself. But the concept itself isn't hard so actually, it shouldn't be a feat to get above 30. Midterms are returned during the next tutorial.

I screwed up the finals especially those questions on Bayesian Nash Equilibrium. Although I could have presented my answers in a more detailed fashion, I don't think it would have helped much as I was pretty weak in that concept itself. The thing about game theory is to really appreciate the big idea. When I was studying for this module, there were many times I had to question myself why this or that has to be done. I just couldn't see the importance in certain things. I mean in reality, most firms aren't going to say, "Ok, so let's formulate our strategies and then work out the Nash equilibrium." It just defeats the purpose of game theory. I took this module actually to train my logic and learn to understand from the perspective of a firm. Unfortunately, I thought there was way too much focus on theoretical concepts so that I didn't actually reap much from this module.

Result: B+
B+ was not shocking given that there were probably only a little over 50 people taking this module and that this module didn't really come as intuitive to me. My advice is that divert more attention to the topics covered after midterms as those will be the main focus of the finals. Well honestly (and I'm not saying this cos' I didn't do well), this module is close to useless unless you want to go on to higher-level modules or do your thesis on something related to game theory. I mean the emphasis on the theories of Nash Equilibrium was just way too much such that I don't see the realism in this module.


EC3333 Financial Economics I

This module was taught by Prof Lu Jingfeng whose English may be a bit hard to comprehend (I seldom comment on such things but if I have to say it, that just means something). But then again, if you don't go for lectures... 

And so this was one module I really disliked and for the first time, I actually regretted taking a module. I thought nothing could get worse than micro in terms of the level of interest but this was just many times worse than micro. Aside from the fact that everything was being thrown at you without any avenues to enhance your understanding (I tried to look for a book that derives all the theories and formulas but to no avail, neither was asking the Prof a solution as well), this module was way too technical for my liking. So it's just formulas and graphs and formulas again.

Topics covered are Optimal Risky Portfolios, CAPM, APT, Bonds and Options. I personally think the textbook was bad (no derivations) but still necessary for this module since the notes are mainly slides created out of the content in the textbook: Investments and Portfolio Management by Bodie, Kane and Marcus, 9th Edition. Note: Investments by Bodie, Kane and Marcus, 9th Edition is almost identical and can be used as a substitute.

Weightage
Tutorial Attendance and Participation: 15%
Assignments: 15%
Midterms: 30%
Finals: 40%

The first component is supposedly easy to get, just attend all tutorials and participate three or four times in class. Similarly, the second component is supposedly easy to get as well but unfortunately, I did not get full marks for the last two assignments. Basically, how it works is that each student gets allocated 3 assignments at random so some may get the ones in the earlier weeks and some may get a mixture of those in the earlier and later weeks. Well, the impression it gives is that it might be somewhat unfair since those who got allocated the tutorials covered in the earlier weeks (especially before the midterms) have it easier. But really, I think the assignments are all easy and given enough understanding, one should be able to score full marks for all of them.

The midterms was disastrous for me. I got a mere 21/30 when the average was probably around 25.5 to 26. Reason: This exact same question from the practice midterms came out and I screwed it up. Yes I did not practise the midterms but aside from that, I think even if I did not, I should have been more careful and have a deeper understanding of the concepts involved. Then there was another question in which I got the correct answer at first but having been too paranoid, I decided to act smart and write something else so I got that wrong too. In fact, there was only one 'differentiator' question which oh, I happened to answer it wrongly as well. That, I can only blame myself for not understanding the earlier chapters thoroughly. In fact, I think the midterms is really doable and it wouldn't have been hard to get at least 26 or something along that line. Anyway, midterm scores will be uploaded onto IVLE once grading has been done.

Finals. Finals was apparently easy since I got a B and I thought I did pretty well. So it's either I underestimated the cohort (doesn't help that there are a few DDP students taking this module) or I overestimated myself. I think it's a mixture of both. Proofs can be easily found in the textbook and yes, contrary to what I thought, many people actually read them. Other than that, it's all just simple calculations and manipulation for one question.

Result: B


ST2132 Mathematical Statistics

Well, the first thing I must say is that as intimidating as Prof Lim Chinghway looks, he's one heck of a good lecturer. He's patient, willing to help, explains concepts really clearly and would even repeat if the class did not catch it. Possibly almost everything you would want to see in your lecturer.

The fact is that this module is very easy compared to ST2131. Like I said, Prof Lim toned it down a lot so that it transformed from a killer module to a CAP-puller for most people I guess.

The big topics covered included Simple Random Sampling, Parameter Estimation (MOM and MLE), Fisher Information, Efficiency, Sufficiency, Hypothesis Testing, Generalized Likelihood Ratio Test and the Comparison of Two Samples. Textbook isn't necessary at all since the notes are sufficient and tutorial questions are from there as well but you could still get it if you want: Mathematical Statistics and Data Analysis by John Rice, 3rd Edition.

Weightage
Tutorial Attendance: 5%
Tutorial Participation: 5%
Assignments: 20%
Midterms: 20% (graded on completeness and also, correctness from Week 2 or 3 onwards cos' they found a grader)
Finals: 50%
Bonus: 5% (for participation either in class or on IVLE Forum)

The first 3 components are free marks so there's no need to talk about them (because you are actually allowed to make changes to your tutorial answers when your tutorial mates are presenting their answers).

I screwed up midterms as usual, got only 24/40. Average was 22 or something. The questions were easy but one of them was pretty unprecedented. But on overall, I must say the Semester 2 paper was harder than Semester 1 paper (and much less people take ST2132 in Semester 2). Even so, it was still doable. Highest was 38/40 by the way. So the S.D. is pretty high. The midterm score was uploaded onto gradebook before the scripts were returned to students during tutorial.

Finals was easy as well. Know your concepts well and trust me on this, copy down all the probability mass or density functions onto your cheatsheet. You'll need it during the exam. With that, you can easily get a decent grade provided you know what you are doing.

Result: A-
Probably got saved by the finals.


ST3131 Regression Analysis

Personally, this is one of the hardest Stats modules I have taken. The level of understanding involved in this module on top of the derivations is not trivial. Oh plus the bell curve is very steep with lots of Maths majors screwing it up. From what I heard, this module used to be on the same level as ST1131. However, since Prof Anthony Kuk took over, it became quite difficult a module.

Coupled with procrastination, I was always lagging behind lectures (I don't go for lectures partly cos it's 8am and partly cos going for lectures isn't gonna make much of a difference). I never attended tutorials as well since the tutor is atrocious as everyone has made him out to be.

Topics covered ranged from 1-factor ANOVA, 2-factor ANOVA to simple, multiple, subset regression, residuals, outliers and the combination of ANOVA with regression. There was no compulsory textbook for this module. All were just references but the main one was Introduction to Regression Analysis by Montgomery, Peck and Vining, 5th Edition.

Weightage
Assignments: 20% (2 assignments worth 10% each)
Midterms: 20%
Finals: 60%

Most people got full marks for assignments which mainly made use of R (I did not though). R isn't tested in finals by the way. Midterms was just plugging in formula. Well, the thing about midterms was that you didn't have to understand what you are doing, you just have to know what to use. Average was around 30/40. The midterm score was uploaded onto gradebook before the scripts were returned to students during lecture.

Finals was the hard one for me or probably for many people. So nothing in the notes appeared and they were all out-of-context questions. This just boils down to how well you understand the concepts and yes, because I didn't, I screwed the finals up badly. But the finals was really typical of an open-book exam where you had to think on the spot and manipulate some stuff. Time wasn't a constraint though.

Result: B
No doubt finals is the determining factor since I got full marks for midterms but at the same time, no doubt that this module is important. My advice is be consistent, clarify doubts immediately, don't ever snowball anything.

6 Jun 2013

AY2012-2013 Semester 2 Module Review


EC2101 Microeconomic Analysis I

This module was taken by Dr Zhang Yang. She is a very enthusiastic lecturer and will reply to student's queries promptly. Also, she can explain concepts very clearly during lectures. I recommend studying the textbook together with the notes. The textbook used for my batch was Microeconomics by Rubinfeld and Pindyck. I think it has changed after my batch.

Weightage
Tutorial attendance and participation: 10%
Homework: 15% (one before and one after midterms, if I remember correctly)
Midterms: 25%
Finals: 50%

The median for the homework was on average only 2 marks away from the full mark, 15. Hence, try and secure close to, if not full marks for both the homework sets.

The midterms consisted of 6 MCQ as well as 2 or 3 structured questions. The MCQ carried a heavy weightage; each question was worth 6 marks. The structured questions were quite easy. The median was around 75/100 and I got 89. Study the notes and textbook well and it'll be easy to get above the average. Midterm scripts will be returned during tutorial.

The emphasis in the finals was on government intervention; taxes and subsidies. This happened to be the chapter I really neglected as it was the very last chapter. To do well for finals, it is really important to know the concepts well.

Result: B 
I really screwed up the finals very badly, hence ending up with only a mediocre grade. The reason was that there were many concepts I was unclear of towards the end of the semester coupled with some careless mistakes.


EC2102 Macroeconomic Analysis I

This module was taken by Prof Ho Kong Weng. There were more chapters covered for this module as compared to EC2101. Personally, the chapter that required the most time was "Dynamic AD-AS". Others are relatively easy especially the ones on IS-LM. I strongly recommend getting the textbook, Macroeconomics by Mankiw. But then again, I self-studied this module all the way so I don't know if there's really a need but I thought the notes weren't very good.

Weightage
Tutorial attendance and participation: 15%
Midterms: 35%
Finals: 50%

The midterms was a 35 MCQ paper. It tested students mainly on their memory skills. I remember there was an absurd question asking about the year this theory came out or something like that. Prof Ho only releases z-scores for the midterms, 0 being the mean and positive scores indicate you are above the average. As I focused on the applications during my revision, I did very badly for the midterms and scored only -0.6. Midterm z-scores will be uploaded onto IVLE.

Many had complained about the finals being a killer. However, I found the finals easy probably because my concepts were strong. Nevertheless, there were some parts which I did not explain clearly, causing some marks to be lost.

Result: A- 
I am not sure if Prof Ho still sets memory-based midterm papers as for my batch but it is still possible to pull up your grade even with a mediocre score for the 35% component. Finals was slightly more mathematical but it really isn't as hard as many people had described it to be. It is important to remain calm during the exam and recall the concepts learnt in class.


MA1506 Mathematics II

This module was taken jointly by 3 lecturers if I remember correctly, two of them being Prof Leung and Prof Chew. Do not expect too much from the Profs though. In fact, I did not attend the lectures at all. The reason why I took this module was to replace MA1101R as this was a more applied version of linear algebra. But I actually thought the topics covered were more of ODE.

Weightage
Midterms: 20%
Finals: 80%

The average for the midterms was around 6.99/10. As with all PYP format, there were 10 MCQ to be completed within one hour. I screwed up the midterms; I could not formulate the ODE for one physics-based question while I made careless mistakes for two other questions, hence ending up with a mediocre score of 7. Anyway, this is a test that you should know your grade as soon as you step out of MPSH. Otherwise, I think the solutions are uploaded almost immediately.

The finals was not really that difficult but it requires knowledge of Fourier Series from MA1505. As I took MA1102R instead, I had to give up the last question on PDE. I don't really think time was much of a problem but do exercise extra caution when doing the paper.

Result: B+
I ended up with a sub-par grade due to my carelessness in finals as well. I screwed up one question on cantilever as well as another question which I can't remember what it's about. Coupled with my midterm score, B+ was expected. In fact, I only began studying for the finals (and when I say studying, it really means going through the notes for the first time since I did not attend lectures or watch webcasts) from Week 11 or 12 onwards so yes, I deserve it. As with all maths modules, practise consistently.


MA2216/ST2131 Probability

My lecturer was Dr David Chew. His notes were basically a summarized version of the textbook and the format was almost identical as well. But I thought he is a pretty good lecturer even though the concepts may be quite dry towards the end. However, do not be fooled by the simple title of this module. As all maths and stats majors will know, this is one of the killer modules. I do not advise anyone from other faculties to take this module if you are weak in maths.

Weightage
Midterms: 20%
Online quiz: 10% (done towards the end of the semester)
Finals: 70% (helpsheet allowed)

The midterms was simply a 15 MCQ paper. I did badly for the midterms, again due to carelessness but in all honesty, I couldn't do 2 questions no matter how hard I tried. The mean was 11/15 and I got only 10. The bell curve for midterms was skewed terribly to the right. Solutions to the midterms was uploaded onto IVLE.

The finals was mostly application-based but it also requires some higher-level thinking. The probability questions at the back were a giveaway.

Result: B+
I was really unclear for the last three topics, Joint Distribution, Expectations and Limit Theorems and not only were they the harder topics (probably with the exception of Limit Theorems), but also, I slacked off towards the end of this semester thus ending up with only a B+ for this module. I should think practice actually doesn't help much in scoring for this module. What is important is to understand the concepts that have been taught.


SE1101E Southeast Asia: A Changing Region

This module was taught jointly by two profs, Dr Irving Johnson and Dr Julius Bautista. I absolutely dislike the content covered for this module probably except for the religion part. I thought SEA has more interesting stuff to talk about like politics rather than what was covered for this module. But in terms of workload, this is probably the best module to take to clear the exposure module under the Asian Studies Division for FASS students. Readings weren't heavy but they also weren't helpful in scoring for the finals.

Many students had praised Dr Irving's lectures but I personally thought he wasn't a very good lecturer. Besides wasting too much time cracking jokes only to rush through the lectures towards the end, he isn't very helpful as well; he might seem enthusiastic to many but he doesn't even reply students' queries. Dr Bautista, on the other hand, though boring (as many have described him to be), is a lot more helpful.

Weightage
Tutorial attendance and participaton: 10%
Group project: 30%
MCQ quizzes: 20%
Finals: 40%

The project was to be done in groups of 4 or 5. There were 3 questions to choose from, each on one theme. My group did the easiest one on urbanisation as data was readily available on the net. Another question was on religion and I can't remember what the last one was about. Having substantiated our paper very well, my group got an A for our project.

MCQ quizzes were memory-based but it can also tests students on the movies broadcast during lectures. However, these movies were made available on IVLE so I didn't think there was a need to attend the lectures at all on top of the lectures being close to useless.

If I remember correctly, the finals had 1 compulsory question and we could choose 2 out of 3 questions for the next section. Each question was on one separate theme but there was one question that combined two themes together.

Result: B
I basically screwed the finals up really badly as I was not well-versed in the content taught for this module and couldn't crap enough during the exam. However, I have no advice as to how to study for this module; I think it really boils down to general knowledge but that could just be my biased opinion as you can attempt to read up the recommended books for this module but it can be really time-consuming.

2 Jan 2013

AY2012-2013 Semester 2 Modules

In the coming semester, I'll be taking the following modules:

EC2101 Microeconomic Analysis I
EC2102 Macroeconomic Analysis I
MA1506 Mathematics II
MA2216/ST2131 Probability
SE1101E Southeast Asia: A Changing Region

EC2101 and EC2102 are core modules that I have to clear by this semester in order to satisfy the prerequisites for most Level-3000 modules by the end of Year 1.

I am taking MA1506 in place of MA1101R as I think I won't be able to survive with the abstract concepts and proofs in MA1101R.

MA2216/ST2131 has been maintaining its notorious reputation for being a killer module for maths and stats majors. This module will preclude me from EC2303.

I am absolutely not looking forward to taking SE1101E. In fact, exposure modules from the Asian Studies Division are mostly pretty dry. However, it has already been planned that I should clear one exposure module each semester to rid myself of this heavy burden by Year 2 Semester 1. Hence, I should procrastinate no further.