Random number Definition and 65 Threads

Take for instance when you ask Mathematica 7 to generate a random number. This number can't be really random. It has to adhere to some process for picking that specific number. Does anyone know anything about the algorithm/process to this?

I am trying to generate 2 normal random distributions (x1,...,xn) (y1,...,yn) that have a predefined degree of correlation between them. The constrain is that I am trying to have the same mean and stdev for both of them.

I am writing a program in Fortran language, in which i use a Random Number Generator (RNG) subroutine. Until now i used ran1 from " Numerical Recipes in fortran ,second edition, Page 271 ", but i think it is quite slow. While searching on the internet for a faster RNG i found a few...

Hi, Guys, I'm new to this forum, and don't have strong background in probability theory, so please bare with me if the question is too naive. Here's the question, In a problem I'm trying to model, I have a random variable (say, R), which is a sum of random number (say, N) of random variables...

http://www.popsci.com/article/2006-07/diy-esp My explanation: 1) statistical anomalies are to be expected, due to the law of big numbers. 2) they're doing post-hoc predictions: "when statistical anomaly occurs => read the news and find the event"

Okay, What I am trying to do is create a create a random number generator, that outputs 1 and 2 (coin toss) From what I understand, the more coin tosses (the more times I generate a random 1 or 2) the more uniform the pattern should be. EG: After generating a random 1-2 sequence, 1,000,000...

Okay, What I am trying to do is create a create a random number generator, that outputs 1 and 2 (coin toss) From what I understand, the more coin tosses (the more times I generate a random 1 or 2) the more uniform the pattern should be. EG: After generating a random 1-2 sequence, 1,000,000...

Random Number Generator, Lottery, and duplicates Hi, I'm new here and looking for a bit of help and some overall conversation on a new project I'm working on. It fundamentally surrounds an international online lottery pool where visitors can join, buy a lottery ticket and then use the power of...

I am just curious. If I have a random number generator, eventually, if I wait long enough all possible numbers should began to repeat. Or would the numbers not repeat? For example, if say the first hundred numbers were totally random 455688132547... etc. would the machine eventually repeat...

I was just shutting down my 12yr old daughters computer. I found Visual Basic running. She has programed a working random number generator. Sure she copied most of the code from the help screens. But she created the form, has a working text box, a lable displaying the results with a command...

i generate a sequence of random number in [0,9], and i need to know whether the random number is uniform or not, so i should check how many time of 1 or 2 or 3...had been generated by the generator? but my program is not work!? #include<stdio.h> #include<stdlib.h> #include<time.h> void...

Can someone help me with this question ? A random number N of dice is thrown. Let Ai be the event that N = i, and assume that P(Ai) = 1/(2)^i, i >= 1. The sum of the scores is S. Find the probability that: (a) S = 4, given N is even; (b) the largest number shown by any die is r, where S...

"'It's Earth-shattering stuff,' says Dr Roger Nelson, emeritus researcher at Princeton University in the United States, who is heading the research project behind the 'black box' phenomenon." They say this box that generates random numbers, 1 or 0, generated many more 1's just before princess...

is there a way to 'beat' a random card generator in blackjack with card counting? a very simple card counting system works by counting high cards against low ones, if i have a count of +9 (high cards likely) with 3 decks left in the shoe i divide by # of decks left and get a +3 'true...

Can somebody prove the following: A Random number which (truly) is uniformly distributed on [0 1] (or in fact any continuous random variable) is irrational with probability 1.