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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(peven)=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


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