CameraIcon
CameraIcon
SearchIcon
MyQuestionIcon


Question

One mapping (function) is selected at random from all the mappings of the set A={1,2,3,.....,n} into itself. The probability that the mapping selected is one to one is



Solution

The correct option is A


Required probability = (n1)!nn1

flag
 Suggest corrections
thumbs-up
 
0 Upvotes


Similar questions
QuestionImage
QuestionImage
View More...


People also searched for
QuestionImage
QuestionImage
View More...



footer-image