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  • Ehiz
  • Member Since Jul 26th, 2007

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Math problem: Average winning roll {WoW}

Dec 21st 2009 1:43PM I found this journal article.

There is a formula for the E(X sub r) where r is the r-th ordered statistic. This is on page 6 of 12 on the left hand side and it is the first equation

So in this case
n=5, (Number of samples drawn)
r=5, (The 5th ordered stat or in this case the winning roll)
q= 1-p = .99

(p is basically the probability of choosing a specific number since in our case it is uniform the probability of choosing any number is equal to .01)

j=0 (Now I believe this is number of number above r. In other words if we wanted to take a look at the expected value of the lowest number then j=4 since there are 4 numbers above the lowest...I think not 100% sure on this)

Ok, going to try and number crunch this.

Math problem: Average winning roll {WoW}

Dec 21st 2009 12:51PM I have a BS degree in Probability and Statistics and currently working on my MS at the moment. Now I am not following either method as to why those are the answer.

First thing first is that you have a discrete uniform distribution from 1 to 100, (this takes care of the integer problem)

Next we are going to take 5 random draws from the discrete uniform distribution and only look at the maximum. So we want to find the distribution of the either the 5th ordered statistic or the Nth ordered statistic (I am getting hung up on this at the moment)

Now for a continuous uniform distribution the ordered statistics are distributed with a Beta distribution, but for discrete I do not know of the top of my head.

So we are looking for the expected value (average) of the the maximum.

There is this but that does not seem to answer the question that is asked.

Ahh, I am going to look more into this.

Enter to win a $5k Dell WoW Edition notebook {WoW}

Dec 14th 2007 1:52PM FOR THE HORDE!

Breakfast topic: Best class rivalry {WoW}

Nov 16th 2007 12:19PM As a lok, my bitter rival is Mages because all they do is cry and complain on how it takes no skill to play lok. When in fact a mage is someone who wished they rolled lok. Look at the mage boss in TK, wearing lok gear.

Warcraft Archive Giveaway {WoW}

Aug 30th 2007 9:47AM where is my i win button at?