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Wednesday, June 2, 2010

Probability I

If you still remember your SPM maths, you will know that it is your Form4 Chapter 7. (Yes Form 5 Chapter 7 is also probability, but probability II)

Anyway, now I am just giving you some examples that I have used in class today. Since the 3 "darlings" dont want to do work, and keep forcing me to give funny examples...so I ended up filling the class with lameness (Those who missed my class today, too bad for you la. neni neni bubu)
KB = me
YY = Yi You
CH = Ching Hua
A = Aiman

Example 1:
Find the sample space of human gender.
YY: gay, less....
KB: Gender Yi You! Gender! not sexuality!
CH & A: LOL!
KB: Gender only male and female right? ya. 10 years ago correct. now got "others" dy. some country got one you know! fill in form they got "male, female, others!" But of course not Malaysia la, we not so open. So exam, in case ur teacher daibi enough to ask u this question, answer "male and female" only ar, dun pandai pandai.

Example 2:
KB: Nah, now we go to ur favourite la Yi You. Find the sample space of human sexuality
YY: Gay, less
CH: Straight!
KB: so homosexual, heterosexual, one more.
A: what?
KB: Bisexual la!
YY & CH: ....

Example 3:
KB: Now I go to event. Event is like a condition given to sample space. Like u throw a dice, I only want all possible outcome for even number...so answer is {2,4,6} only. *see them sien diao liao* Okay la. So find the sexuality of human, that likes the same gender one
YY: Gay gay!
CH: Yi You only likes gay!
A: Homosexual. *Macam only he know what I asking like that...-__________-* (Sample space only got {Homo, Hetero, Bi} tak ada gay pun)
KB: and bisexual. Bi oso love same gender one ma!
All: ..........

Example 4:
KB: Now got one girl coming in. She wants to find one guy in the room. Apa sample space?
CH: Cheh so easy! We four lo!
YY: Event is me! The girl want to find me!
KB: okay. event. now the girl want to find a yongsui guy. so what is the event? so this room only Yi You yong sui ma, so event is?
A: Yi You.
KB: yeap! exactly!
YY: ....(shows the =.= face)
KB: Now the girl wants to find a lengzai. What is the event?
YY: *keep repeating* ME ME ME!!! MEEEEE!!!!! (macam maggie mee like that)
CH: everyone except Yi You!
KB: exactly! So event = {Kai Boon, Ching Hua, Aiman}
YY: NOOOOOOOOOO!!!!!!!!!

Example 5:
(After teaching tree diagram)
KB: So now, if Yi You decided to go Chow Kit road. He is at TTC now. But he dun1 2 tell ppl he go chow kit. paiseh. so he say he go MPH first. Then from MPH, he go chow kit. If there are 4 ways to go MPH, bus, LRT, taxi, drive, then from MPH to Chow kit got 5 ways, Friends pick (I write pick only), bus, LRT, taxi, drive. Then he reach Chow....
CH: Why got a dick one?
KB: HAR? where dick?
CH: Neh dick
YY: PICK LA YO! See! Din listen in class! (-_________-" My P looks a bit like D)
KB: =.=" Continue. Then Yi You reach Chow Kit. Got road block. so he have to go home. Go home, he got 3 ways. either, fly, swim, or walk. So, how many ways for him to go home?
(After reveal answer)
KB: So now Yi You, you know go chow kit got how many ways dy ar. How many ways? *sarcastic look*
YY: -___-" 20 ways......
KB: Go home?
YY: 60.
KB: yeap. 60 different combinations.

Still got banyak daibi examples. Tapi I sleepy. Continue tmr.
Still got:
Eg6: Ching Hua's combination of wives
Eg7: Ching Hua finding a sleeping partner example
Eg8: Prostitute company example (Since Aiman have econs tmr. I use a lame econs example)
Eg9: F = ma example (YY and CH got physics tmr, so I use physics example)

And actually got out of topic one. Like Chapter 4 Arguments. If p, then q. haha. got time only post tmr. xD Stay tuned!

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