<PRE><B>Question 980401</B>
What is the probability that a randomly assigned password (3 letter , non repeating)has only vowels in it ? 
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If you mean in English, there are 5 vowels in the 26 letters.
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The 1st is 5 of 26
Then 4 of 25
Then 3 of 24
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5/26 * 4/25 * 3/24 = 1/26 * 4/5 * 1/8 = 1/26 * 1/5 * 1/2
= 1/260
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