Bored Mathematican ?
June 23rd, 2012 at 11:53:07 AM
permalink
Help the mathematically challenged today. You will feel better afterwards.
Double deck game, deal 20 cards, odds of 0 aces, odds of 8 aces.
Mathematically illiterate poster.
Please answer 1 in 60.3 , not .0024563, or S_k = \sum_{n=0}^{k}a_n = a_0 + a_1 + \cdots + a_k.
Double deck game, deal 20 cards, odds of 0 aces, odds of 8 aces.
Mathematically illiterate poster.
Please answer 1 in 60.3 , not .0024563, or S_k = \sum_{n=0}^{k}a_n = a_0 + a_1 + \cdots + a_k.
June 23rd, 2012 at 12:05:49 PM
permalink
Is that a real problem?
How's this for an idiot way to increase house edge? Suppose craps did not pay on the pass line if the point is either 4, 6 or 8 and the dice hit 2-2, 3-3 or 4-4?
Yeah, waiting for meat to defrost is boring...
How's this for an idiot way to increase house edge? Suppose craps did not pay on the pass line if the point is either 4, 6 or 8 and the dice hit 2-2, 3-3 or 4-4?
Yeah, waiting for meat to defrost is boring...
Donald Trump is a fucking criminal
June 23rd, 2012 at 12:09:47 PM
permalink
I was going to show how this is calculated, but I might scare away all the fish.
(there is another bus coming soon)
"Give a hungry man a fish and he will soon be hungry for more fish"
I think this is a Ben Franklin quote
"Teach him how to fish and he will have something else to do while he is still hungry for fish"
Sounds like Mark Twain
I'm on vacation
(there is another bus coming soon)
"Give a hungry man a fish and he will soon be hungry for more fish"
I think this is a Ben Franklin quote
"Teach him how to fish and he will have something else to do while he is still hungry for fish"
Sounds like Mark Twain
I'm on vacation
June 23rd, 2012 at 12:11:50 PM
permalink
Enjoy your vacation. I am 72 years old, 11th grade formal education, cut me a little slack. Not everybody is a genius.
June 23rd, 2012 at 12:12:39 PM
permalink
" Is that a real problem?"
No I just feel asleep and hit the keyboard with my head. Come on !!!
No I just feel asleep and hit the keyboard with my head. Come on !!!
June 23rd, 2012 at 12:34:47 PM
permalink
50/50. Either it happens or it doesn't.
Resist ANFO Boston PRISM Stormfront IRA Freedom CIA Obama
June 23rd, 2012 at 1:59:12 PM
permalink
Based on your previous posts, I'm not sure if you're serious or not. In fact I think you just wanna see how many people will respond. But I like doing silly calculations also, so I did odds of getting 0 aces in first 20 draws. My number was roughly greater than 1 in 8, ~16.9%. I went by brute force, and I'm sure there's an easier way, but I can't remember it.
Drawing all 8 aces would be a little tougher using my slow inefficient method.
Drawing all 8 aces would be a little tougher using my slow inefficient method.
June 23rd, 2012 at 2:19:28 PM
permalink
I haven't doubled checked my math' but I got:-
P(0 Aces) = 0.169 or 1 in 5.9
P(8 Aces) = 0.000000489 or 1 in 2,044,737
P(0 Aces) = 0.169 or 1 in 5.9
P(8 Aces) = 0.000000489 or 1 in 2,044,737
June 23rd, 2012 at 2:29:03 PM
permalink
Sh*t, yeah I committed a typo. 1 in 6 roughly, not 1 in 8.
June 23rd, 2012 at 2:52:41 PM
permalink
I am serious, just not good at math. Chances of 8 aces in first 20 cards from 2 decks.
Not trolling , just a frustrated INDEPENDENT GAME DEVELOPER **
** Sounds less nuttier than inventor.
Not trolling , just a frustrated INDEPENDENT GAME DEVELOPER **
** Sounds less nuttier than inventor.
June 23rd, 2012 at 4:41:03 PM
permalink
I can recommend the hypergeometric distribution probability calculator of nerdbucket.com :http://www.nerdbucket.com/statistics/hypergeometric/ .
There you can easily calculate such mathematical problems.
There you can easily calculate such mathematical problems.
My favorite bet: Double Down!
June 23rd, 2012 at 6:28:25 PM
permalink
I doubt it will be easy but i will try and report back.
Thanks.
Thanks.
June 23rd, 2012 at 6:39:34 PM
permalink
This site also has a page saying what he thinks your ideal body weight should be.He says for a 6 foot male you should weigh 120 lbs.If you are 6 feet and weigh 160lbs he says you are fat.I hope his statistics work is better then his health work.LOL
Happy days are here again
June 23rd, 2012 at 6:40:14 PM
permalink
About 1 in 534597.285314559
"When two people always agree one of them is unnecessary"
June 23rd, 2012 at 6:41:29 PM
permalink
P(8 Aces) = 0.000000489 or 1 in 2,044,737 About 1 in 534597.285314559
I think one of these answers is wrong ???
I think one of these answers is wrong ???
June 23rd, 2012 at 9:08:13 PM
permalink
Both of Switch's figures are the correct ones.
June 23rd, 2012 at 10:27:51 PM
permalink
Quote: SwitchI haven't doubled checked my math' but I got:-
P(0 Aces) = 0.169 or 1 in 5.9
P(8 Aces) = 0.000000489 or 1 in 2,044,737
I agree also.
Here is the nuts and bolts of this problem
http://stattrek.com/online-calculator/hypergeometric.aspx
Excel has a HYPGEOMDIST function
| Aces | Probability | 1 in |
|---|---|---|
| 0 | 0.169251896 | 5.91 |
| 1 | 0.351692251 | 2.84 |
| 2 | 0.299840188 | 3.34 |
| 3 | 0.136636035 | 7.32 |
| 4 | 0.036293947 | 27.55 |
| 5 | 0.00573534 | 174.36 |
| 6 | 0.000524574 | 1,906.31 |
| 7 | 0.00002528066 | 39,555.92 |
| 8 | 0.00000048906 | 2,044,737.03 |
June 24th, 2012 at 8:00:11 PM
permalink
Nice work, Switch.
I took one look at the question and thought, "Yeah, no thanks."
I took one look at the question and thought, "Yeah, no thanks."
https://wizardofvegas.com/forum/off-topic/gripes/11182-pet-peeves/120/#post815219
June 25th, 2012 at 3:10:21 PM
permalink
Quote: Mission146Nice work, Switch.
I took one look at the question and thought, "Yeah, no thanks."
Thanks Mission,
I had to rely on my very rusty probability theory and I'm sure i did it the long way around ... I'm certainly not use to the excel functions which is obviously far quicker.
