Mission146
Mission146
Joined: May 15, 2012
  • Threads: 125
  • Posts: 13201
April 1st, 2021 at 4:01:27 AM permalink
Quote: coachbelly

Who told you that you're not a mathematician?



I told me that I'm not. I'm not qualified to call myself one and nobody should call me one. I'd suggest that anyone with a four-year degree in any field loosely related to math has either learned to do the sort of math that I'm doing or can learn it relatively easily. Actually, most high schoolers should be able to learn it.

They'd probably be better at it than I am, too. As you can see, I made a bit of an omission above and came up with the wrong answer, at first. What's even more amusing about that is that my reasoning was exactly wrong and is what led to the omission.

That just proves, once again, that solving equations is the easy part. Most of math is about asking the right question.
Vultures can't be choosers.
AlmondBread
AlmondBread
Joined: Jul 3, 2015
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  • Posts: 24
Thanks for this post from:
Mission146
April 7th, 2021 at 2:46:21 PM permalink
Quote: Mission146

97.96318477654818%

Your math is right, but the web calculator you're using must have rounding error or something. Using my graphing calculator, I get 97.96354357%

WolframAlpha and Google agree:
1-(4*(36 choose 15)-6*(24 choose 9))/(48 choose 15)
ThatDonGuy
ThatDonGuy
Joined: Jun 22, 2011
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Mission146
April 7th, 2021 at 3:58:47 PM permalink
Quote: AlmondBread

Your math is right, but the web calculator you're using must have rounding error or something. Using my graphing calculator, I get 97.96354357%

WolframAlpha and Google agree:

1-(4*(36 choose 15)-6*(24 choose 9))/(48 choose 15)


I heard that...
C(36,15) = 5,567,902,560
C(24,9) = 1,307,504
C(48,15) = 1,093,260,079,344
The exact solution is 57,065,021 / 58,251,283, which is about 97.9635435669288%
Wizard
Administrator
Wizard
Joined: Oct 14, 2009
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Mission146
April 7th, 2021 at 9:02:18 PM permalink
Quote: ThatDonGuy

The exact solution is 57,065,021 / 58,251,283, which is about 97.9635435669288%



I get (COMBIN(48,15)-4*COMBIN(36,15)+6*COMBIN(24,15))/COMBIN(48,15) = 0.979635435669288.
It's not whether you win or lose; it's whether or not you had a good bet.

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