Homework Help: Probability

Posted by Anna on Friday, January 1, 2010 at 12:32pm.

How many different four-digit numbers can be formed using the digits 3,2,1, and 0?

9,18,24, or 36?

Probability - bobpursley, Friday, January 1, 2010 at 12:47pm
you cant put zero as the first digit...

3*3*2*1

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