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January 3rd, 2017, 06:59 AM  #1 
Senior Member Joined: Feb 2014 Posts: 112 Thanks: 1  Prove CDF for Discrete Uniform Distributions
Hello, We have Discrete Uniform Distributions; how can prove CDF for this? Thanks. Last edited by skipjack; January 12th, 2017 at 05:45 AM. 
January 12th, 2017, 05:24 AM  #2 
Senior Member Joined: Dec 2012 From: Hong Kong Posts: 801 Thanks: 288 Math Focus: Stochastic processes, statistical inference, data mining, computational linguistics 
$\displaystyle \sum_{s=a}^x \frac{1}{ba+1} = \frac{1}{ba+1} \sum_{s=a}^x 1 = \frac{1}{ba+1} \cdot \frac{(x+a)(xa)}{2} = \frac{(x+a)(xa)}{2(ba+1)} $


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cdf, discrete, distributions, proof, prove, uniform 
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