  Math Central - mathcentral.uregina.ca  Quandaries & Queries    Q & Q    Topic: random variable   start over

3 items are filed under this topic.    Page1/1            A binomial random variable 2010-11-29 From yvette:a binomial random variable has a mean equal to 200 and standard deviation of 10. find the values of n and p.Answered by Penny Nom.     Random 1998-09-15 From Hugh Ballantyne:I am an occasional teacher. Here is my question: Does the word "random" have a technical meaning in mathematics?Answered by Harley Weston.     The Central Limit Theorem 1997-04-21 From Donna Hall:A skeptic gives the following argument to show that there must be a flaw in the central limit theorem: We know that the sum of independent Poisson random variables follows a Poisson distribution with a parameter that is the sum of the parameters of the summands. In particular, if n independent Poisson random variables, each with parameter 1/n, are summed, the sum has a Poisson distribution with parameter 1. The central limit theoren says the sum tends to a normal distribution, but Poisson distribution with parameter 1 is not normal. What do you think of this argument?Answered by Neal Madras.      Page1/1    Math Central is supported by the University of Regina and The Pacific Institute for the Mathematical Sciences.    about math central :: site map :: links :: notre site français