Kris V. answered • 06/21/17
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There are 11 letters in "probability", and there are 2 b's and 2 i's in "probability".
The number of arrangements is
11!/(2!2!) = 9,979,200
Kris V.
! is a factorial symbol
n! = 1•2•3 ...•n
1! =1
2! = 1•2 = 2
11! = 1•2...•10•11=
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06/21/17
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