SOLUTION: Determine the number of permutations of the letters of the word "BASICSTATISTICS"

BASICSTATISTICS, a 15 letter word, with the letters written in 
alphabetical order is:

AABCCIIISSSSTTT

If we could tell the like letters apart, the answer would be 15!,
but since we can't, we must divide by all the factorials of the 
numbers of times each letter appears in the word:

So we divide 15! by 2! for the 2 indistinguishable A's, 2! for
the 2 indistinguishable C's, 3! for the indistinguishable I's,
4! for the 4 indistinguishable S's, and 3! for the 3 
indistinguishable T's.

Answer: 

Edwin