SOLUTION: find the probability that if 5 different-sized washers are arranged in order of size, round to six decimal places.

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Question 848565: find the probability that if 5 different-sized washers are arranged in order of size, round to six decimal places.
Answer by swincher4391(1107) About Me  (Show Source):
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Find the probability that if 5 different- sized washers are arranged in a row, they will be arranged in order of size.
There are 5! = 120 ways to arrange 5 washers in a row and 2 ways to have them in correct order, small to large or large to small. Hence, the probability is:
2%2F120+=+highlight%281%2F60%29