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visits member for 11 months
seen Apr 10 at 0:37

Apr
10
accepted Combination of Choosing Identical Items into Identical Slots
Apr
10
accepted Properties of the two ratios added
Mar
9
asked Estimating Variance of Geometric Growth Function
Mar
8
revised Variance of an Iterative Normally Distrubuted Function
added 441 characters in body
Mar
8
revised Variance of an Iterative Normally Distrubuted Function
added 441 characters in body
Mar
8
comment Variance of an Iterative Normally Distrubuted Function
Did, I am not sure what I did wrong for you to be angry? I am stuck on the problem that's why I am seeking the advice of experts on this site. Is my question not legitimate?
Mar
8
asked Variance of an Iterative Normally Distrubuted Function
Mar
8
comment Sum of Random Distributions/ Unusual Results
Hi JPI, ha! yes, that is exactly what I was trying to simulate. One of the things I noticed when I ran the simulation, over 500 times (of the 1000 row cumaltive standard normal values) in excel, and I took the average of the 500x1000 matrix, row wise, the average was 0, as I would have thought. The variance on the other hand was the most intriuing, it was the $/sqrt(t)$ , where $t$ is a time trend (1,2,3,4,5...999,1000). I am trying to understand why that is the case.
Mar
8
comment Sum of Random Distributions/ Unusual Results
H Henry, thank you for responding. Where does the $(n+1-i)$ come from when your computing the mean?
Mar
8
comment Sum of Random Distributions/ Unusual Results
Please help!! :)
Mar
8
comment Sum of Random Distributions/ Unusual Results
What about the variance?? What should the variance then be of iterativly summing the variables?
Mar
7
asked Sum of Random Distributions/ Unusual Results
Mar
3
comment Unit Digit of A Simplified Fraction
Hey coffee math, I am trying to deduce certain information about a fraction before simplifying. What information can I extract from the expression?
Mar
3
asked Unit Digit of A Simplified Fraction
Mar
3
comment Properties of the two ratios added
In the example, 1/x+1/y=2/5, I gave the only thing I can deduce is that either x or y is a multiple of 5. Does anyone have anything else to conclude about the relationship between x,y, and 2,5?
Mar
3
asked Properties of the two ratios added
Feb
6
asked Combination of Choosing Identical Items into Identical Slots
Jan
16
comment Probability of choosing among married couples
Yea I think so. for some reason I did $2^5$ instead of $2^4$ very sorry. Another way to solve the problem is to imagine 4 slots. For the first slot there is 10 ways to select someone, the second slot has 8 ways of selecting someone, third has 6 and the 4th has 4 ways. And since we picked the members one-by-one in an order, we divide by 4!. Are there any other creative way any of you guys of breaking the sets up and finding the same solution?
Jan
16
accepted Probability of choosing among married couples
Jan
16
asked Probability of choosing among married couples