Editing Talk:2046: Trum-
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− | This is not that weird. If names were random then it would be a 1 in 26^4 = 456976 chance of a particular president matching another for the first 4, but this is a "Birthday Problem" with 44 presidents, so the probability of any two presidents sharing the first 4 characters is 1-(456976!/(456976^44 (456976 - 44)!)), which wolfram alpha is giving as 0.206% | + | This is not that weird. If names were random then it would be a 1 in 26^4 = 456976 chance of a particular president matching another for the first 4, but this is a "Birthday Problem" with 44 presidents, so the probability of any two presidents sharing the first 4 characters is 1-(456976!/(456976^44 (456976 - 44)!)), which wolfram alpha is giving as 0.206% |
:Yes, but we already "fulfilled our obligation" after the sixth president :) [[User:Zachweix|Zachweix]] ([[User talk:Zachweix|talk]]) 15:59, 14 September 2018 (UTC) | :Yes, but we already "fulfilled our obligation" after the sixth president :) [[User:Zachweix|Zachweix]] ([[User talk:Zachweix|talk]]) 15:59, 14 September 2018 (UTC) | ||
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− | + | An approximation to the correct probability would be to do 44^2/(2 x 26^4) which would give about 0.2% chance of this happening. So fairly weird, but as the comic suggests, many things about this presidency are weirder than 0.2%. | |
− | An approximation to the correct probability would be to do 44^2/(2 x 26^4) which would give about 0.2% chance of this happening. So fairly weird, but as the comic suggests, many things about this presidency are weirder than 0.2%. | ||
:I love that we are now having a mathematical discussion about how weird things are in the presidency. [[User:Zachweix|Zachweix]] ([[User talk:Zachweix|talk]]) 15:58, 14 September 2018 (UTC) | :I love that we are now having a mathematical discussion about how weird things are in the presidency. [[User:Zachweix|Zachweix]] ([[User talk:Zachweix|talk]]) 15:58, 14 September 2018 (UTC) | ||
Should we mention Andrew Johnson and LBJ, perhaps in a "Trivia" section? Obviously Johnson is a very common surname, but they're still unrelated presidents that share the first (and only) 7 characters of their last name. (Are there other pairs of presidents that share at least the 3 first letters of their surnames besides AJ/LBJ and HST/DJT?) | Should we mention Andrew Johnson and LBJ, perhaps in a "Trivia" section? Obviously Johnson is a very common surname, but they're still unrelated presidents that share the first (and only) 7 characters of their last name. (Are there other pairs of presidents that share at least the 3 first letters of their surnames besides AJ/LBJ and HST/DJT?) | ||
[[Special:Contributions/172.69.62.160|172.69.62.160]] 16:25, 14 September 2018 (UTC) | [[Special:Contributions/172.69.62.160|172.69.62.160]] 16:25, 14 September 2018 (UTC) | ||
− | + | ...And, upon reflection, I just realized Harding shares the first 3 letters with the Presidents Harrison, so that's one(?) more example. | |
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− | ...And, upon reflection, I just realized Harding shares the first 3 letters with the Presidents Harrison, so that's one(?) more example. | ||
So we discount Presidents Adams, Bush, Cleveland, Harrison and Rosevelt as being related, or being the same person. | So we discount Presidents Adams, Bush, Cleveland, Harrison and Rosevelt as being related, or being the same person. | ||
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If you count Buren as opposed to Van Buren then you have 4 starting Bu and 2 starting Bur [[Special:Contributions/162.158.155.146|162.158.155.146]] 16:52, 14 September 2018 (UTC) | If you count Buren as opposed to Van Buren then you have 4 starting Bu and 2 starting Bur [[Special:Contributions/162.158.155.146|162.158.155.146]] 16:52, 14 September 2018 (UTC) | ||
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