Thanks for the clarification, Patrick! -R. Rachel West Economic and Industry Analysis Division RITA / Volpe Center / US DOT Cambridge, MA 02142 (617) 494-3034 ________________________________ From: gov2001-l-bounces at lists.fas.harvard.edu [mailto:gov2001-l-bounces at lists.fas.harvard.edu] On Behalf Of Patrick Lam Sent: Thursday, February 19, 2009 3:46 PM To: gov2001-l at lists.fas.harvard.edu Subject: Re: [gov2001-l] Question 4, Part A Requirements.... you do not have to solve the integrals by hand. On Thu, Feb 19, 2009 at 3:44 PM, Rachel West <rwest817 at gmail.com> wrote: Hi everyone - I'm having last-minute insecurities: In problem 4 part a), we weren't to fully derive the expected value and variance of the function, were we? It's an easy enough exercise on paper, but LaTeX and I still have a bit of a strained relationship this early in the semester...... However, I don't want to come off lazy, jumping from noting the integral form into using the results without deriving them "by hand" on a word processor..... Any insight into expectations? Thanks! Rachel -- "We have always known that heedless self-interest was bad morals; we know now that it is bad economics." -FDR _______________________________________________ gov2001-l mailing list gov2001-l at lists.fas.harvard.edu http://lists.fas.harvard.edu/mailman/listinfo/gov2001-l -- Patrick Lam Department of Government and Institute for Quantitative Social Science, Harvard University http://www.people.fas.harvard.edu/~plam

I think set.seed() just sends an argument to R's random number generator so that any operations which make use of random numbers will yield identical results across different computers (or repeated runs on the same computer) as long as the same seed number is being used. I don't think the number itself has any real significance. E.g should always generate the numbers [1] 0.2655087 0.3721239 On Sat, Feb 21, 2009 at 8:59 PM, Lai, Ronald <rolai at hbs.edu> wrote: it. /2009/02/22403/S03. If this is not you, please log in again.