Published by:
CGP EDU Academic Team
Published on: August 14, 2026
Let A and B be two finite sets having m and n elements respectively such that 
A mapping is selected at random from the set of all mappings from A to B . The probability that the mapping selected is an injection is
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
B
As we know the total number of mappings is 
and number of injective mappings is 
.
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