My Math Forum Probability involving even numbers

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 October 18th, 2019, 05:18 AM #1 Senior Member   Joined: Dec 2015 From: Earth Posts: 823 Thanks: 113 Math Focus: Elementary Math 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.
 October 18th, 2019, 06:09 AM #2 Senior Member     Joined: Sep 2015 From: USA Posts: 2,636 Thanks: 1472 your formula is correct Thanks from idontknow

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