Question
The English alphabet contains 21 consonants and 5 vowels. How many strings of 7 letters of the English alphabet contain (a) exactly one vowel? (b)
The English alphabet contains 21 consonants and 5 vowels. How many strings of 7 letters of the English alphabet contain (a) exactly one vowel? (b) exactly two vowels? (c) at least one vowel? (d) at least two vowels?
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Database Systems For Advanced Applications 15th International Conference Dasfaa 2010 Tsukuba Japan April 2010 Proceedings Part 1 Lncs 5981
Authors: Hiroyuki Kitagawa ,Yoshiharu Ishikawa ,Wenjie Li ,Chiemi Watanabe
2010th Edition
3642120253, 978-3642120251
