Tag: random component

The Problem With a Common Engineering Entrance Test

… is correlation and concentration.

Like everything else, a student’s performance in a test can be divided into two – the predictive component (which can be explained based on preparation levels, general intelligence, ability to handle pressure, etc.) and the random component (which includes and is not limited to illness on the day of the exam, reaching the venue late leading to unsettlement, pure luck (or the lack of it) and so on).

Now, when you have a number of exams, what you expect is for a student’s “random component” to even out across these exams. If he outperforms his “predictive component” in one exam, you would expect that he would underperform in another exam. It’s like the “predictive component” of his performance is the expected “value” of his performance.

Thus, when you have a large number of entrance exams, it gives students the opportunity for their random components to even out, and take luck out to some extent from their college admission process. When you collapse all entrance exams into one, however, a student who happens to get a large negative “random component” on that given day is denied a second chance. Thus, the college admissions process will become much more of a crapshoot than it is now.

The other thing about uniform admission standards is why should every college have the same requirements for the students it wants to recruit? Having a common exam forces this upon colleges, unless they are allowed to change their weights allocated to different sections differently. If this doesn’t happen, it’ll only end up bringing all of the country’s education system to a uniform mediocrity.

Religion 1

I guess from my posts on religion you people know that I’m not the religious types. I don’t believe in rituals. I don’t believe that saying your prayers daily, or hourly, or monthly has any kind of impact on the orientation of the dice that life rolls out to you.

I believe in randomness. I believe that in every process there is a predictive component and a random component, and that you have no control over the latter. I believe that life can be approximated as a series of toin cosses, er. coin tosses, and some times the coins fall your way, and some times they don’t.

I was brought up in a strange household, in religious terms that is. My mother was crazily religious, spending an hour every day saying her prayers, and performing every conceivable ritual. My father was, for all practical purposes, atheist, and I never once saw him inside the prayer room in the house. I don’t ever remember having to make a conscious choice though, but I somehow ended up becoming like my father. Not believing in prayers or rituals (except for a brief period during my sophomore year at college), not believing that any actions of mine could bias the coin tosses of life.

A couple of years back I bought and read Richard Dawkins’ The God Delusion. I found the book extremely boring and hard to get through. And it really shocked me to read that people actually believe that praying can change the bias of the coins of life. Or that there exist people (most of Americal, shockingly) who think there was a “God” who created the earth, and that evolution doesn’t make sense.

Anyway the point now is that the missus thinks that I’m atheist because it’s the convenient thing to be, and because I haven’t made that extra effort in “finding God”. She things I’m not religious because I’m too lazy to say my prayers, and light incense, and all such. The irony here is that she herself isn’t the ritual types, instead choosing to introspect in quiet temples.

Just want to mention that you might find me write a lot more about religion over the next few days, or weeks, or months, as I try find my bearings and convince myself, and the missus, of my beliefs.

For starters, I’d say that if there exists a god, he does play dice.