If seven numbers are randomly selected without replacement from set {1, 2, 3, 4, 5, 6, 7}, what is the probability that the numbers are selected in ascending order?	Answers.
A) 1/2560 B) 1/6400 C) 1/4820 D) 1/5040 E) 1/1280
The total number of ways to arrange 7 numbers is 7! = 5040.   There is only one way to arrange the numbers in ascending order.   P(ascending order) = 1/5040   The answer is 1/5040.
<result>D</result>
If seven numbers are randomly selected without replacement from set {1, 2, 3, 4, 5, 6, 7}, what is the probability that the numbers are selected in ascending order?