Answer to Question #298461 in Statistics and Probability for Lester San Juan

Question

How many four-letter words can be formed using the letters of the word WOMAN?

Answer 1

The word WOMAN has 5 letters. We want to form 4 letter words from the letters in the word WOMAN. Therefore, the number of possible 4 letter words is $\binom{5}{4}={5\times 4!\over 4!\times 1!}=5$ words.