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A typical problem of permutations of non-distinct objects is this: How many ways are there to
arrange the letters of the word mississippi. The s's and the p's are non-distinct objects. There
is no difference between one s and another. The previous formula that you know for permutations
(watch my video "Counting methods") is applicable only to distinct objects. In this video, I do
the problem about the word "mississippi".
Prof. Serna. Math, Statistics & Physics Tutor. Miami.
10300 SW 72nd Street, Suite 460-5, Miami, FL 33173.