Basically, I am going to laugh at this article. (Disclaimer: I guess that life in general, has mocked all of us several times by now, so I hope that this post is taken in the right spirit.)
The general idea put forth is that FIITJEE is not fit for JEE. And then, point-by-point, the article proceeds to contradict this general idea. For starters, the author has “plenty of examples” to show that FIITJEE percentile is “completely irrelevant” to JEE rank. Apparently, the author has a grip on correlation (neglecting the ambiguity in the “completely irrelevant” phrase used.. does that mean uncorrelated or independent?). But then, in order to really really convince us about the same, instead of presenting his data to us, he gives us a list of “methods”, which are the result of solving over 50 mock tests (and a real one, I guess by his rank). These methods should apparently boost our FIITJEE score much more than our JEE score, implying that the two are “entirely irrelevant”, QED. Atleast, that is what I think this killer line means:
[PS: MOST OF THESE METHODS DO NOT WORK FOR IIT-JEE, RATHER YOU WONT NEED THEM IN JEE, ‘COZ JEE PAPERS THESE DAYS ARE EASIER AND CAN BE SOLVED WITHOUT THESE METHODS. STILL YOU CAN USE THESE METHODS IN SOME PLACES TO SAVE TIME.]
Clearly, the author has a grip on reality as well. (BTW, an upper-case parenthesized postscript right in the middle of a completely boldfaced article is distracting.)
The first method shows how dimensional analysis could solve a 5 mark (real) JEE question. (Something is wrong with the exam, on the whole). It is followed by more trivia, like substituting values, substituting functions..
..and then comes a list of deep, moving thoughts: In FIITJEE, there cannot be consecutive questions with both answers A. There simply cannot be. The probability of a FIITJEE answer being B or C is 70%. The probability of the answer to the first question of a passage comprehension in a FIITJEE exam being option A is 10%.
Forget the numbers. What irony that the author who indicated earlier how this analysis is largely useless to the JEE aspirants, proceeds with the same zeal, to gather such intricate statistical details for the very same analysis!
But his efforts did pay off.. He has proudly named a tactic called the Inclusion Exclusion Principle. The reader may be eagerly expecting something on par with the combinatorial theorem by the same name. But in fact, this (new) principle goes further: it delicately tackles the intriguing problem of deciphering the cleverly rearranged terms in the options of certain chemistry questions. I am only worried that the subtle involvement of inclusion-exclusion and JEE in the whole affair might go unnoticed by a casual reader.
I sincerely hope that the author cherishes the combinatorial namesake with equal joy, if not more.