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#1 2008-11-20 05:32:33

TK44444
Guest

integers

you are drawing one number 3 different times from 10 integers.  what is probability of getting all 3 numbers to match>

#2 2008-11-20 05:44:59

mathsyperson
Moderator
Registered: 2005-06-22
Posts: 4,900

Re: integers

It doesn't matter what the first integer is, but after that the next two have to match it.
The probability of the second integer matching the first is 1/10, and the third one has the same probability.

Therefore, the probability of all three matching is 1/100.


Why did the vector cross the road?
It wanted to be normal.

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