Math Question

[sno_duc]

I used these in a whitepaper once to show that a VP was a complete twat.

Are they flexible enough to be usable on any co-worker??? 

if so, don't tease us. 

Please show your work.   

[Ddan]

Anal

[GAAN]

Anal

Are they flexible enough to be usable on any co-worker??? 

if so, don't tease us. 

Please show your work.   

[Ddan]

Someone had to say it 

[mitt]

Short and final answer I think.  You can never be sure that the odds are a finite number.  Like was said on the first page, you need a range, or reword the odds like at least 1:99 or less than 1:99, but to come up with a single finite number, is like saying something is exactly 1 inch long, but it really always has a tolerance.

(unless it is a dice or something with a finite number of sides and outcomes)


here are some excel functions to use if you want to play with it:

normdist
binomdist

Excel Magic Trick #22: NORMDIST function for Probability



mitt

[GAAN]

wow

ive never wanted to punch a guy in the throat nearly as bad as I do Mr Excellfun

[SacDuc]

It is finite. Either A happens or A doesn't happen. Lets call that one B. So the claim is that A happens 99% of the time and B happens 1% of the time. How do I figure out how many trials I have to run in order to verify this to a degree of 95% accuracy. 0 trials gives you 0% accuracy on your verification. Infinite trials gives you 100% accuracy. How do I determine how accurately I have verified the 99:1 claim with a given number of trials somewhere between 0 and infinity.

sac

[derby]

Infinite trials gives you 100% accuracy.

i thought the more trials you ran the closer it would get to 100% but never actually be 100%.

[sno_duc]

A little off topic, but along the same lines.
           ____
Does 1.99999 = 2


   ____
1.9999 x 10 = 2 x 10      (multple both sides by 10)
     _____
19.99999  = 20
    _____      ______
19.99999 - 1.999999 = 20 - 2  (subtract orginal number from both sides)

18 = 18

18/9 = 18/9        (divide by nine)

2 = 2


Try it with any number....multiple by 10, subtract orginal number, divide by nine.
Can't remember the professors name, he was one of the people who wrote modern math, fun guy always little tidbits to keep the lectures entertaining.

[Randimus Maximus]

wow

ive never wanted to punch a guy in the throat nearly as bad as I do Mr Excellfun

+ 11ty billion

[Rameses]

i thought the more trials you ran the closer it would get to 100% but never actually be 100%.

That's true.

But it's also true that no matter how many trials you do, you haven't done an infinite number.

[Randimus Maximus]

That's true.

But it's also true that no matter how many trials you do, you haven't done an infinite number.

Are you still in school?

[Rameses]

Are you still in school?

I think you already know the answer to that, but yes, I am.

I'm no longer a stat major though.  I always did well in stat classes without really putting much effort into them, but one day realized I didn't really enjoy it and didn't have any interest in doing it for the rest of my life.




And sac, 9,604.

That's your answer.

I'm too lazy to look up the equations you need, but you can use this link.

Even though the population is infinite, the percentage of the population represented by a given sample size changes less and less as your population increases.  Therefor, you can chose some arbitrary extremely large population size and use that to represent infinity fairly closely.  If you notice, there's no difference in the sample size needed for a 95% confidence level and a confidence interval of 1 with population sizes of 200 million and 900 trillion.

[akmnstr]

I can't believe that this thread has now gone on 5 pages when the answer was given on page 1.  It has been stated and re-stated.  Someone seems to be a little slow on the pickup here.  No disrespect intended, just a morning observation.  I'm sure there is something other than statistics that Sac is good at.

[The Bacon Junkie]

---snip---
 
I'm sure there is something other than statistics that Sac is good at.

He's pretty good at spatchcocking a chicken... 

I've seen it in person, the man's got mad skills!



P.S.  It's not what you think...