Question 472698: Please help me.
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? Answer by edjones(7569) (Show Source):
You can put this solution on YOUR website! nCr=combination of n things taken r at a time.=n!/((n-r)!*r!)
Assuming that the letters are chosen without replacement:
((4C2 * 5C1) + (4C3))/9C3
=17/42 the probability of having more than one vowel.