Best way to understand PROBABILITY to study for a test?

Best way to understand PROBABILITY to study for a test?

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opinionator.blogs.nytimes.com/2010/04/25/chances-are/
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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.

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.

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

[math]P \colon \Omega \rightarrow \mathbb{R}[/math]

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

Thinking in terms of “natural frequencies” helps sometimes

opinionator.blogs.nytimes.com/2010/04/25/chances-are/

Don't count 6,6 twice. 11/36.

>If you need only one six

Actually it's 10/36

Misread. Definitely 10/36.

-1 point, forgot to simplify fraction.

>i thought you were good at math user? guess you went to college for nothing...

Tfw you actually got a point off in graduate probability for this

you'll probably fail

haha what the fuck thats retarded

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.

lrn 2 fucking english first, maybe? your sentence is two separate questions forced into some kind of unholy matrimony.

Why I shouldn't count 6,6 twice? If so, then I shouldn't count all doubles twice, so it's 10/30

All probabilities are 50%, either an event happens or it doesn't happen.

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.