Question 1176649
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Depends.  Which four letters were removed.  If he took the four As, then the probability of the sign reading ALABAMA when he put the letters back is 100%.  But if he took four different letters, there are 24 ways to arrange four things only one of which would be correct.  Different answer if he took two or three As.

																
John
*[tex \LARGE e^{i\pi}\ +\ 1\ =\ 0]
My calculator said it, I believe it, that settles it
*[illustration darwinfish.jpg]

From <https://www.algebra.com/cgi-bin/upload-illustration.mpl> 
I > Ø
*[tex \Large \ \
*[tex \LARGE \ \ \ \ \ \ \ \ \ \  
								
{{n}\choose{r}}
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