Best way to understand PROBABILITY to study for a test?
i am not good in math, i like the theory behind, but sucks on tests, want to know a trick to be bettter in Probability.
>>8124155
it's all about the sample set and events
everything else is decoration around these abstract concepts that's designed to make it easy to understand.
>>8124169
Thanks for the advice.
you have 36 variations of events. double six is the only one variant, so probablity of double six is 1/36. if you need only one six, then you have 12 available variants, so probability is 12/36
>can't fucking understand the basis of probability to save my life
>get into discrete structures in CS class
>realize all probability-based topics deal with finite sample sets
>mfw CS wins again
>>8124155
[math]P \colon \Omega \rightarrow \mathbb{R}[/math]
>>8124157
N! / (x! * (N-x)!) * 2^x
Just use common sense and break problems down if you don't know how to do them. Perhaps find relationships through brute for low numbers then expand the relationship for the problem
>>8124155
Thinking in terms of “natural frequencies” helps sometimes
http://opinionator.blogs.nytimes.com/2010/04/25/chances-are/
>>8124203
Don't count 6,6 twice. 11/36.
>>8124723
>If you need only one six
Actually it's 10/36
>>8124725
Misread. Definitely 10/36.
>>8124893
-1 point, forgot to simplify fraction.
>i thought you were good at math anon? guess you went to college for nothing...
>>8124934
Tfw you actually got a point off in graduate probability for this
>>8124155
you'll probably fail
>>8125489
haha what the fuck thats retarded
>>8124155
Learn how to draw probability trees.
I mean it.
Just remember Barnett's axiom
Stated in lay terms, either something happens or it doesn't. Thus, the limit of p(x), where p(x) is the probability of an event x, tends towards 2/4 from the right side. There's interesting theories about approaching from the left, but you don't need to worry about that.
>>8124155
lrn 2 fucking english first, maybe? your sentence is two separate questions forced into some kind of unholy matrimony.
>>8124723
Why I shouldn't count 6,6 twice? If so, then I shouldn't count all doubles twice, so it's 10/30
>>8124155
All probabilities are 50%, either an event happens or it doesn't happen.
>>8127180
Because 6,6 is not distinct when rearranged.
Consider the picture I drew you (I'm in an airport; sorry). The symmetry is why you only count once.
