document.write( "Question 472698: Please help me.
\n" ); document.write( "A word consist of 5 consonants and 4 vowels. Three letters are selected at random. What is the probability of having more than one vowel?
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Algebra.Com's Answer #324053 by edjones(8007)\"\" \"About 
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nCr=combination of n things taken r at a time.=n!/((n-r)!*r!)
\n" ); document.write( "Assuming that the letters are chosen without replacement:
\n" ); document.write( "((4C2 * 5C1) + (4C3))/9C3
\n" ); document.write( "=((6*5)+4)/9C3
\n" ); document.write( "=34/84
\n" ); document.write( "=17/42 the probability of having more than one vowel.
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