Saturday, April 16, 2011

"I'M TRYING. THIS HARDWARE IS ANCIENT"

Went up and down today trying to buy a calculator. It was quite strange. All the shopkeepers were like "Oh! NUS High!" and then telling me the TI 89 Titanium is sold out. Ah well. Managed to get one in the end by expertly spotting it from 25 meters. Last one in the shop too XD Have a lot of NUS High students been replacing calculators? o.O They tried to offer me the newer one, but I'm a sucker for nostalgia, and if I have to replace the calculator, I might as well get the same one. Its amazing that it lasted for 5 and half years. Makes me kinda sad that it died so close to the end. Should I keep it, throw it, or donate to science?

The new calculator can't connect to my 64 bit Windows 7 computer. The first thing I yelled was the title of the post. Then I stopped and realised, I accidentally made a gaming reference without meaning to :P Getting too jaded. Although I should keep them to myself when with friends, no one seems to enjoy them D:

Its strange that the closer exams come, the less stressed I become. Psyched for Portal 2 :D:D

Wednesday, April 13, 2011

Mental Prep

Shallow breathing, you step onto the concourse.
Walk towards your friends, all sitting in a circle, familiar smiles betraying the slightest bit of fear. Books all around, notes strewn from side to side, your friends are either in deep concentration in their books or in the quick back and forth of last minute questions.
You look down at your bag and pull out your notes.
Might as well.

Bell rings.

We all move together towards to the hall.
As you descend the staircase, a familiar sight greets you.
A throng of people are gathered outside, some in silence, others contributing to the roar of conversation with inane comments or desperate questions.
You steal a quick glance into the hall.
The familiar sight never fails to strike fear into your heart.
A sea of orderly tables.
File by file.
Rank by rank.
All perfectly positioned.

Teachers are milling around them like honeybees to flowers, arranging question papers.
A teacher in front readies the clock. 3 hours.
You set down your bag, pulling out your stationary and calculator, your shaky hands showing fear and apprehension.
Years of school. Months of lessons. Days of homework. Hours of preparation. All leading up to this moment.
A teacher steps out and opens the door.
Best not to linger.

You hesitate crossing the threshold of the hall.
A teacher on stage hastens you to take your seat.
Rows and rows, you pick out yours and sit down nervously.
People walk past you.
The air is cold.
You look down, and upon your desk, multicolored pieces of paper, already deciding your future.
On command, hundreds of students follow instructions.
Name here. Class there. Sticker here.
Shading nervously, your circles are uneven as your hands shake.
The clock is set to 3 hours, how would you survive that?
Last 2 minutes to start. You sit there nervously, mind racing through what you learned yesterday. These 2 minutes feel like forever...

"Your time is 8.30am, you have 3 hours,

You may begin"

A hundred pages flipping at the same time makes a strange noise.
An unmistakable noise, like a gunshot, or a siren.
You flip the page.

Your mind goes blank.

Question after question falls to your pen.
Countless ovals are shaded.
Pages and booklets are filled in.
Hours fly by in your concentrated mental state.
Until 3 hours has suddenly became 15 minutes left to write.
The shakes are over. The tension is gone.
Times up.

You lean back in your seat.
Satisfied but worried.
The teachers begin their rounds, collecting papers like clockwork.
Glances are exchanged. A rare smile makes its appearance.

You're dismissed.
Hundreds of chairs scrape the floor.
You walk towards the door.
People pat backs and exchange opinions of the exam.
You briefly smile, but you remember.

Tomorrow's another day.


Tomorrow's another paper.


Thursday, April 7, 2011

Exam time.

Looks like APs are finally coming up. Even though the date had always been scribbled on the whiteboard, it was just a date, not something I could identify with. Didn't really realise until we filled in the AP admin forms. And like a speeding train rushing down a hill, it hit me. APs are really coming.
Also, its the littlest things that panic you. Like reading through a Physics AP prep textbook, looking at mechanics and going, "Oh hey, I remember this, year 1!" And it hits you. Again. This is the finale of our 6 years. That certainly panicked me.
Ah well. There are only three things certain in life. Death, taxes, and regret.

Went out today to the new mall on impulse. That and free pizza and 33% off Starbucks Coffee. Later that day, I was introduced to a new concept that I didn't know of before. And some of you may think its bloody obvious, but I honestly never heard of them. Private blogs.

The very notion is an oxymoron, and I'm surprised to find that they're pretty commonplace. Definitively, a blog is where you share your feelings and thoughts with the world. So why put secrets on the internet? Possibly that you need to jot them down for reflection afterwards, but then wouldn't a diary suffice? But then I guess, if you don't publicize it, its like a sort of e-diary. Which brings me to my next point: locked posts on public blogs. Another oxymoronic idea, but this time, instead of secretly jotting them down somewhere away from public, you basically alert other people that you have a secret, and refuse to tell them. Attention seeking, if you ask me. After all, you should have trusted friends on MSN to talk to about these things. Or even better, lock them up in your head.

Anyway, its AP season and I should really get back to studying, but first, a practical application of statistics! :D

Assumptions: All variables considered are assumed to be independent.
All reasonable conservative estimates are within 5% of actual.
All calculations can be performed in any order
There are 4,987,600 people in Singapore.
72.2% are Chinese: 4987600 * 0.722 = 3601047
51% are female = 3601047 * 0.51 = 1836534
76.1% are 15 - 64 years old: Reasonable conservative estimate: 10% are 17 - 20 years old.
1836534 * 0.10 = 183653
183653 * 0.277 = 50872
Reasonable conservative estimate: 10% have roughly the same interests or personality
50872 * 0.10 = 5087
Reasonable conservative estimate: 40% are already in a stable relationship
5087 * 0.6 = 3052
Reasonable conservative estimate: Of those who are not, 50% do not want a relationship
3052 * 0.5 = 1526
Reasonable conservative estimate: 70% are physically acceptable
1526 * 0.7 = 1068.2
Remove 10% (5% on each side) of the outliers
1068.2 * 0.9 = 961.38

961 JC girls 17 - 20 who share similar interests, are physically and mentally similar and not in a relationship.
Thus, if I were to walk out now, the probability of meeting such a girl is 0.00019 or 0.019%

Based on previous data, a reasonable conservative estimate of success rate in asking a girl out is 1%. So the chances of meeting a suitable girl and successfully asking her out is now 0.0000019 or 0.00019%

Thus, using a geometric distribution, and assuming the girls are chosen randomly and the probability for each girl is 0.01, find the number of girls, n, needed in order to have a 90% chance of being successful.

1 - (1 - 0.01)^x =0.9
x = 230

I will have to try 230 times to get a 90% chance for a girl from the 961 to go out with me.

This is sad.