How do I calculate odds? I've never been good at this despite

>>8343696
Get to work

Introduction to Mathematical Statistics

https://www.google.com/url?sa=t&source=web&rct=j&url=http://math1.snru.ac.th/UserFiles/File/math1%40snru/2556/HOGG%3B%2520CRAIG%2520-%2520Introduction%2520to%2520Mathematical%2520Statistics%2520(4th%2520Edition)(1).pdf&ved=0ahUKEwjY26T6543PAhWr5IMKHdSNDVkQFggsMAI&usg=AFQjCNHfLKb7bcq8ZhvN-p6tq0sKk1s07A&sig2=mcgFpKVh7JgTlFbSjKqlsg

>>8343696

Here you go.

http://www.ime.usp.br/~walterfm/cursos/mac5796/DoctrineOfChances.pdf

First line:

>The probability of an event is greater or less, according to the number of chances by which it may happen, compared with the whole number of chances by which it may either happen or fail.

Thanks broskis.

>>8343696
>naturally gifted at proportions
>I have a penis and I pee out of that penis

>>8343696
If you believe in the heart of cards it is 100%

Play magic

How many outcomes are there for something? Let's say 9

How many of those outcomes are useful / wanted? Let's say 3

Odds are 3/9

Congrats

>>8344409
for your example

there are 40 cards
and the likelihood of drawing 1 card is therefore 1/40

...

however you want a combination of cards

well, how many combinations are there? there are 40*40 combinations of 2 cards

and you want 1 combination... but it's actually 2 combinations (because drawing A-B is the same as drawing B-A)

so your odds are 2/(40*40)

>>8344410

You wouldn't be putting the first card back before drawing the second card would you? If you don't put it back (and I don't think you would normally), then you can either look at it as odds for one particular card chosen for two separate events:

a) 1/40
b) 1/39

1/40 * 1/39 = 0.064%

Or as odds for one combination event:

1/(40*39) = 0.064%

File: 1470978290880.jpg (37KB, 500x692px) Image search: [Google]

37KB, 500x692px

>>8343696
Why are they called odds and not evens?

>naturally gifted at proportions

lol what the fuck does that mean?
you're "naturally gifted" at fractions? At multiplcation and division?