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A mapping is selected at random from all...

A mapping is selected at random from all mappings f:A rarr A where set `A={1, 2, 3, .... n} `If the probability that mapping is injective is `3/32` then the value of `n` is:

A

3

B

4

C

8

D

16

Text Solution

Verified by Experts

The correct Answer is:
B
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