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October 18th, 2019, 05:18 AM   #1
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Probability involving even numbers

If $\displaystyle 1\leq p \leq n \; $ ; $\displaystyle n\in \mathbb{N} $.
find the probability such that p is even number.

My approach : $\displaystyle P(p-even)=n^{-1}\lfloor \frac{n}{2} \rfloor $.

Last edited by idontknow; October 18th, 2019 at 05:28 AM.
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October 18th, 2019, 06:09 AM   #2
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your formula is correct
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