Lowghost Posted February 3, 2007 Share Posted February 3, 2007 White Male 43 Married 3 Children Work from home, actually make money while I read this board. At least an hour a day. Hope that helps. Good Luck Link to comment Share on other sites More sharing options...
RobertGoulet Posted February 3, 2007 Author Share Posted February 3, 2007 You can also do what many modern scientists do when there isnt the data you need.you can always make it up! yea i think thats what im gonna have to do. i do appreciate u trying to get ppl to participate but who wants to do statistics when there is politics to argue about!? Link to comment Share on other sites More sharing options...
SnyderShrugged Posted February 3, 2007 Share Posted February 3, 2007 yea i think thats what im gonna have to do. i do appreciate u trying to get ppl to participate but who wants to do statistics when there is politics to argue about!? sorry. I think you might still make it though 14 to go! Link to comment Share on other sites More sharing options...
jps36 Posted February 3, 2007 Share Posted February 3, 2007 Race: Asian Gender: Male Marital Status: Single Kids: None Age: 18 Job: Student Time Spent: .5 hour Link to comment Share on other sites More sharing options...
GibbsFactor Posted February 3, 2007 Share Posted February 3, 2007 White Male Single 1 son 29 MIS Manager 1.5 hours Link to comment Share on other sites More sharing options...
RobertGoulet Posted February 4, 2007 Author Share Posted February 4, 2007 one last bump before mondays class. anyone else care to help? Link to comment Share on other sites More sharing options...
jasimpson Posted February 4, 2007 Share Posted February 4, 2007 About 1.5 hrs a day, Black, Male, Single, undergrad at UMCP, I'm 6'2" 220 and I'm ****in jacked Link to comment Share on other sites More sharing options...
RySkins Posted February 4, 2007 Share Posted February 4, 2007 About 1/2 hour a day White Male Single No kids Job: Golf Pro Link to comment Share on other sites More sharing options...
Disco Dave Posted February 4, 2007 Share Posted February 4, 2007 Race: White Gender: Male Marital Status: Single Kids: None Age: 34 Job: Cowboy Killer Time Spent: 1.5 hour Pets: 2 dogs Link to comment Share on other sites More sharing options...
The Brave Little Toaster Oven Posted January 21, 2011 Share Posted January 21, 2011 ------------------- Okay...i have to do this extra credit assignment by 11:45am today...any help is greatly appreciated. The answers dont have to be right, I just have to show an honest attempt at solving the problem. You can use this Excel sheet to generate a random variable Xi that is drawn from the box |-9|-8|27|27 (often you will see an error message if you open the Excel sheet; for some reason a file path is inserted in the first column and I cannot avoid that; you can look at the formula and remove it and things should be fine; the first column uses the function "=rand()" to generate uniform random numbers. The second column uses the =vlookup("adjacent left column", "lookup table", 2,1) command to produce a random variable Xi that is drawn from the box |-9|-8|27|27|). 1. Monte Carlo histogram for Xi with 100, 1000, 10000 repetitions * please generate the MC histograms * please decribe what you see * how do the MC histograms change with the number of repetitions? * what do the MC histograms have to do with the probability histogram of Xi? 2. Random variables that are i.i.d. combinations of the underlying random variable Xi * please define the following random variables: o Z1 = h(X1,..Xn) : = X1+..+Xn o Z2 = h(X1,..Xn) : = (X1+..+Xn)/n o Z3 = h(X1,..Xn) : = X1*..*Xn o Z4 = h(X1,..Xn) : = (X1*..*Xn)/n o Z5 = h(X1,..Xn) : = X1(X2+..+Xn) o Z6 = h(X1,..Xn) : = X1(X2+..+Xn)/n * please generate MC histograms (set number of MC repetitions equal to 10000) for each of the 6 defined random variables when o n = 25 o n = 100 o n = 1000 * please decribe what you see * how do the MC histograms change with the number of observations n? * please compare the Monte Carlo histograms of the 6 different random variables 3. Please relate your findings to the law of large numbers (LLN) and the central limit theorem (CLT) -------- My question is this - how do I define the random variables in question 2? I am stumped. Please help me Link to comment Share on other sites More sharing options...
Titaw Posted January 21, 2011 Share Posted January 21, 2011 DAMN IT!!! Fooled by the epic bump!!! Link to comment Share on other sites More sharing options...
JMS Posted January 21, 2011 Share Posted January 21, 2011 Not Applicable. Link to comment Share on other sites More sharing options...
FanboyOf91 Posted January 21, 2011 Share Posted January 21, 2011 sum, average, product, ?, ?, ? What does "define" mean? Link to comment Share on other sites More sharing options...
The Brave Little Toaster Oven Posted January 21, 2011 Share Posted January 21, 2011 sum, average, product, ?, ?, ?What does "define" mean? it hurted my head ---------- Post added January-21st-2011 at 09:04 AM ---------- I figured out why I was having trouble....I'm supposed to use that box that is given as the random variables: |-9|-8|27|27| Link to comment Share on other sites More sharing options...
Corcaigh Posted January 21, 2011 Share Posted January 21, 2011 I think what it's asking is, say for Z1 and n=25, calculate X1+X2+X3 ... + X25 and do this 10,000 times, charting the results as a histogram. Repeat for n=100 and n=1000. And repeat for the calculations specified in Z2 through Z6. But I don't know what the function Xi is to know if this makes sense. Link to comment Share on other sites More sharing options...
RobertGoulet Posted January 21, 2011 Author Share Posted January 21, 2011 This brings back some horrible memories. Thanks for teh bump:thumbsup: Link to comment Share on other sites More sharing options...
Pick6 Posted January 21, 2011 Share Posted January 21, 2011 Fooled by the bump Link to comment Share on other sites More sharing options...
btfoom Posted January 21, 2011 Share Posted January 21, 2011 Good luck with the project. White, Male, Married, 3 kids, Aerospace Engineer. I spend about 1 hour a day on ES. Link to comment Share on other sites More sharing options...
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