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Someone with Probability experience

Posted: Thu Sep 10, 2009 4:07 am
by Juicy
I have a math question which i'm not really understanding because there's terminology I haven't learned yet.

Meghan (M), Jolene (J), and Tara (T) are the only entrants in a competition for which there is a first and second prize. Consider the experiment of selecting the two prize winners.

for the sample space I have {MJ, MT, JT, TJ, TM, JM}

now for the question I have to do its asking me to state as subsets of the sample space for different things.

ex. Meghan wins first prize...

May seem dumb to some but i'm not that bright.

EDIT: And if someone would like to help me understand better what Subsets are.

Re: Someone with Probability experience

Posted: Thu Sep 10, 2009 4:13 am
by SM-Count
Going to sleep, but if it's not answered in the morning, I'll answer it in sexy LaTeX.

The short of it: sample space is the set of all events (correct there), the subset is basically that whole set broken down. i.e. the whole set is {MJ, MT, JT, TJ, TM, JM} and the subset where Meghan wins is the first two elements of the set {MJ, MT}

Re: Someone with Probability experience

Posted: Thu Sep 10, 2009 4:20 am
by Juicy
TY! :love:

Re: Someone with Probability experience

Posted: Thu Sep 10, 2009 4:39 am
by Mirosuke
MJ = MICHAEL JACKSON
JM = JOYMAX

Lol, sorry i had to. Well, i'm too tired to think right now, but if i could... i would tried to help. Will help tomorrow if i can. :U

Re: Someone with Probability experience

Posted: Thu Sep 10, 2009 4:43 am
by Juicy
Ugh it was assigned today, but its due tomorrow D:

Re: Someone with Probability experience

Posted: Thu Sep 10, 2009 4:50 am
by Mirosuke
Let me see if my neurones are still awake...

so
now for the question I have to do its asking me to state as subsets of the sample space for different things.

what are subsets? lol
So u need to ask yourself to proove the theory of whos first and second? or something like that? :/
god, im stupid lol

Re: Someone with Probability experience

Posted: Thu Sep 10, 2009 5:03 am
by EvGa
Bah, if you had waited two more days I could have helped. We're on combinatorial probability (easy) right now in my probability and statistics class.. We talked VERY briefly on sets and subsets today, but begin Set Theory in the next chapter on Friday..

Yes junior in college, yes behind on my math classes, kinda. Took calculus, skipped a year, now on stats, then calc II next semester lol.

I skimmed ahead in my book. Wouldn't a subset be a set with two outcomes that are basically the same elements. Ex. {MJ, JM}? If MJ is set A and JM is set B, A would be a subset of B, right? I may be reading it all wrong, but like I said we haven't covered this yet... they also go on to talk about Proper subsets.

Any who, good luck with your HW. /end useless post. :P

*google it, I bet there are some good resources out there. I'm too tired to look any up.

Re: Someone with Probability experience

Posted: Thu Sep 10, 2009 5:15 am
by Juicy
Lol... Im not even in post secondary yet... This is all Gr 12 shit.

Re: Someone with Probability experience

Posted: Thu Sep 10, 2009 5:40 am
by EvGa
Yeah I took Calculus in grade 12, we didn't deal with probability.

I'm looking forward to chapter 6: Inference on a Binomial Proportion. Or Discrete random variables.

Re: Someone with Probability experience

Posted: Thu Sep 10, 2009 11:52 am
by SM-Count
Subset is kinda vague actually, but the example has Meghan winning first so I presumed the subsets it wanted was subsets of the entire sample space where M was first.

Re: Someone with Probability experience

Posted: Thu Sep 10, 2009 12:24 pm
by woutR
what age are you in grade 12?

Re: Someone with Probability experience

Posted: Thu Sep 10, 2009 2:01 pm
by Juicy
woutR wrote:what age are you in grade 12?

Some of my peers are still 16 because they have a late bday. Most are 17 and very few are 18.

Re: Someone with Probability experience

Posted: Thu Sep 10, 2009 2:29 pm
by CrimsonNuker
Gonna have Data Management myself next semester >_<

Re: Someone with Probability experience

Posted: Thu Sep 10, 2009 4:52 pm
by Doron
but.. isn't JM JT MT enough for it?

there's three possible outcomes, not 6, amirite? MJ, TJ and TM would be just too much...

Re: Someone with Probability experience

Posted: Thu Sep 10, 2009 7:23 pm
by Blindfire
CrimsonNuker wrote:Gonna have Data Management myself next semester >_<



Pff, Advanced Functions this semester, Calculus next.


Data Management is easy.

Re: Someone with Probability experience

Posted: Thu Sep 10, 2009 10:30 pm
by Juicy
Icealya wrote:but.. isn't JM JT MT enough for it?

there's three possible outcomes, not 6, amirite? MJ, TJ and TM would be just too much...

No there's 6 because there's 3 people, 2 prizes. 3 x 2 = 6.

Re: Someone with Probability experience

Posted: Fri Sep 11, 2009 4:25 am
by Azilius
Blindfire wrote:
CrimsonNuker wrote:Gonna have Data Management myself next semester >_<



Pff, Advanced Functions this semester, Calculus next.


Data Management is easy.


Haha same here. Don't tell me you're from Ontario >.>

Re: Someone with Probability experience

Posted: Fri Sep 11, 2009 4:39 am
by Amarisa
wish i was in a higher math class but my damn school put me in ica :banghead: :banghead:

Re: Someone with Probability experience

Posted: Sat Sep 12, 2009 12:21 am
by Blindfire
Azilius wrote:Haha same here. Don't tell me you're from Ontario >.>



Yup. Reppin' the UCDSB.