Class 12 Probability · Mcq Single Correct1 Marksfinite_sample_spaces
Class 12 Maths · Probability · Mcq Single Correct #21
Choose uniformly one function from {1,…,10} into itself. Find P(the function is injective).
✅ Step-by-Step Solution
Final Answer: Option (B): 9!/10⁹
- There are 10¹⁰ functions and 10! injective functions. Their ratio is 10!/10¹⁰=9!/10⁹.
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