Tuesday, July 8, 2008
Ok don't talk about mid years. It just sucked for me. Not for paper 1 [mcq] though.
That's why I'm going to do a analysis of paper 1! With
tikam method!
I'm sure for many in our class we usually are very acquainted to the
tikam method, so sit back and watch the probabilities that I'm going to type below. [WARNING: If you don't like stats, u can ignore the first part]
1. Let X be the number of MCQ questions you get correct in a 40 questions paper. [P(right) = 0.25 because there are four answers so 1/4 = 0.25]
2. Assume X to follow a Binomial Distribution as inspired by
Bernoulli.Therefore X~B(sample size, probability)
X~B(40, 0.25)
3. Key into a GC - binompdf[sample size, probability, your score!]
The lower the probability, the smarter you are! [This is subjective to unforseen circumstances]
An example:
My score: 29
X~B(40, 0.25)
Key into GC - binompdf(40, 0.25, 29) That is P(X=29)
I get... *presses GC*.. 3.38754192 x10^-10...
That's very low omg... I'm smart! Haha joking.
How can I be smart when the top student got 38.
P(X=38) = 5.8068079 x10^-21... way smaller than mine arghhhh
Oh yes, to do this, you MUST NOT study for your MCQ paper. Because it states for it to be random - or in our case -
tikam. :D
Have fun!
CZ
the genius killed @ 5:22 PM
