doing selection without replacement, the chance is
1/5 * 1/4 * 1/3 = 1/60
or, since there are 5P3 = 60 permutations of 3 of the 5 letters, and only one of them spells BED, the chance is 1/60
Five cards are lettered A B C D E.Three cards are chosen at random, one after the other, without replacement and are placed in the order.what is the probability that the cards spell the word BED
2 answers
There are no permutations in probability