Gangatharan G posted an Question
July 28, 2021 • 08:02 am 30 points
  • IIT JAM
  • Mathematical Statistics (MS)

A mapping is selected at random from the set of all the mappings of the set a = {1, 2,., n} into itself. the probability that the mapping selected is an injecti

A mapping is selected at random from the set of all the mappings of the set A = {1, 2,., n} into itself. The probability that the mapping selected is an injection is (A) (B) n! (n-1)! (C) n n! (D) n-T

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