Posted by taylor on Tuesday, September 28, 2010 at 12:46am.
The letters of the word Mississippi are placed in a hat. What is the probability that the first two letters drawn are both i if the first letter drawn is not replaced?

probability  Reiny, Tuesday, September 28, 2010 at 8:30am
four i's, 11 letters total
prob of given case = (4/11)(3/10) = 12/110 = 6/55
or
C4,2)/C(11,2) = 6/55
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