How to interpret certain features? [more inside]
posted by noztran on Nov 6, 2009 - 0 answers

I want to determine the difference between distributions. When would I use kl-divergence and when would I use rmse? It seems like both equations reduce deviation to a single number, but couldn't find a comparison between them.
posted by lpctstr; on Nov 4, 2009 - 5 answers

Statistics question: is it possible to test sets of cumulative data for significant differences in rate? [more inside]
posted by rollick on Nov 4, 2009 - 9 answers

How do I create a cross-tab from Census data (SF3)? [more inside]
posted by qldaddy on Oct 30, 2009 - 12 answers

How do I appropriately valuate players in my competitive fantasy baseball league? [more inside]
posted by po822000 on Oct 28, 2009 - 10 answers

How do I get a controlled distribution of random numbers to fairly determine a start position. [more inside]
posted by monkeystronghold on Oct 25, 2009 - 21 answers

BookSuggestionFilter: I need to learn about R (and statistical modeling) in a hurry. [more inside]
posted by kenliu on Oct 22, 2009 - 5 answers

Why are postseason baseball games so long? (Data inside.) [more inside]
posted by madcaptenor on Oct 18, 2009 - 11 answers

I'm a statistics n00b trying to learn how to combine the results of several tests into one. [more inside]
posted by gsteff on Oct 17, 2009 - 4 answers

StatisticAnalysisFilter: I took (pretty close to) scientific observations of the general populace in a neighborhood for a few months (personal project, long story). I measured the number of people who had trait X (or did not have trait X) in two locations, A and B. Now, I want to test the statistical significance of these results. Is the chi-square test sufficient for this? Or is there a better option? [more inside]
posted by MoreForMad on Oct 11, 2009 - 7 answers

I'm looking for statistics on the types of garbage that's currently sitting in American landfills. Does anybody have any good resources for this? To be clear, I'm trying to find the percentage of paper, plastics, metal, etc as they contribute to the greater whole. Statistics from other countries are welcomed too.
posted by wandergeek on Oct 8, 2009 - 7 answers

Is a contingency table the right thing for this kind of data (detailed within), and either way, how do I analyze it in Prism 5.0? [more inside]
posted by Tandem Affinity on Sep 28, 2009 - 6 answers

I coach a high school soccer team. Each practice we go through a routine which involves repetitions of various skills. The number of repetitions accomplished by a player for each skill is recorded in an excel spreadsheet for ranking purposes. I want to determine the rate of improvement so the players can see their progress and who's improving most. Is there a simple excel function that would help me do this?
posted by TheManticore on Sep 19, 2009 - 2 answers

My website's stats app says that visitors stay for an average of five minutes and ten seconds. I know that this is pretty decent ... but does it put us in the 70% percentile? The 90% percentile? Is there anywhere you know of where I can go to find lots of comparative statistics for duration of visits to sites?
posted by dacoit on Sep 7, 2009 - 10 answers

I understand the danger parvovirus poses to puppies, but what are the odds of a puppy contracting the disease in the US (specifically Alameda County, California)? [more inside]
posted by zippy on Sep 1, 2009 - 10 answers

If you do a search for my company’s website on Google, one of the top hits is a page at Quantcast.com that purports to display “visitor statistics” for our domain. These statistics are wildly inaccurate by orders of magnitude and make it look as though our site gets only a tiny percentage as many visitors as it actually does. What’s more, there are all kinds of demographic charts and info, purportedly about our site, that don’t seem to have any connection to reality whatsoever. How do I get them to stop misrepresenting us? [more inside]
posted by dacoit on Aug 27, 2009 - 17 answers

How to calculate the stats for the "Average" US citizen? And does it mean anything? [more inside]
posted by kandinski on Aug 26, 2009 - 15 answers

Is work/trade, or any kind of non-monetary exchange of goods and/or services currently under statistical analysis? [more inside]
posted by JaiMahodara on Aug 24, 2009 - 4 answers

Lots of interrelated data, little idea of how to analyze it. What method or type of software is best for collecting complex information for future analysis? [more inside]
posted by newlyminted on Aug 20, 2009 - 6 answers

How important are quantitative research skills for getting a job at a DC think tank? [more inside]
posted by Spurious on Aug 16, 2009 - 3 answers

How to translate the scientific/statistical English words "accuracy" and "precision" into scientific/statistical Russian? [more inside]
posted by ZenMasterThis on Aug 14, 2009 - 4 answers

Looking for statistics and/or reports about services given by NGOs, private companies and governments to parents, as opposed to services directed to childrens, in european countries. [more inside]
posted by elpapacito on Aug 13, 2009 - 2 answers

How badly has the economy affected leisure travel to Europe over the summer of 2009? [more inside]
posted by cheez-it on Aug 5, 2009 - 7 answers

I have some friends collecting movie & music data for the month of August - what are some innovative/interesting things I can do with the results? [more inside]
posted by troika on Aug 3, 2009 - 3 answers

Stats filter: Is logistic regression what I need? If so, can I do this in regular SPSS (v17) or do I need the add-on? [more inside]
posted by bingoes on Aug 3, 2009 - 9 answers

I think I finally understand what I like to do. So... what would I like to do? [more inside]
posted by McBearclaw on Jul 28, 2009 - 16 answers

There's a monthly raffle at work for 5 parking spaces out back. There are about 30 people in my office. There's no limit to the amount of tickets you can buy. You can only win once. Otherwise, parking costs about $4 a day, or about $80 a month. Raffle proceeds go to charity. What's the optimal amount to spend on this? [more inside]
posted by boghead on Jul 24, 2009 - 19 answers

Popular Forums on Statistics and Quantitative Research? [more inside]
posted by Spurious on Jul 20, 2009 - 7 answers

What are the real odds of being killed by lightning, if you are outside in a field during a storm (i.e. factoring OUT all the people smart enough to stay inside)? [more inside]
posted by Jim Biancolo on Jul 17, 2009 - 19 answers

geeks, help! how can I (relatively quickly) get a rough idea of how many pages are in a particular website? (more) [more inside]
posted by jak68 on Jul 15, 2009 - 6 answers

What are some simple experiments that help explain complicated phenomena? [more inside]
posted by Christ, what an asshole on Jul 6, 2009 - 15 answers

What's the correct analysis of the frequency of repeat Super Bowl winners? [more inside]
posted by glenngulia on Jul 3, 2009 - 22 answers

Having run split tests on the e-commerce website at work, how do I extract meaningful conclusions from the raw data? [more inside]
posted by gi_wrighty on Jun 24, 2009 - 2 answers

Where can I find visuals (graphs or ?) that show the relationship between height and nutrition? [more inside]
posted by peter_meta_kbd on Jun 17, 2009 - 8 answers

Does anyone know of a good source that can help me figure out which statistical test to use, and under what circumstances? [more inside]
posted by anonymous on Jun 15, 2009 - 3 answers

Experiment statistics & data representation: I need advice on presenting the difference between two experimental configurations. Should I pool the data from equivalent experiments or not? [more inside]
posted by Mapes on Jun 10, 2009 - 8 answers

What are good websites for tennis statistics? [more inside]
posted by peacheater on Jun 3, 2009 - 3 answers

I'm looking for statistics on rate of information retention of video vs. print. Where can I find this? [more inside]
posted by Nathanial Hörnblowér on Jun 3, 2009 - 1 answer

Any statisticians, psychometricians, econometricians, etc. in the house? I've got a question about survival models..... [more inside]
posted by jtfowl0 on May 30, 2009 - 7 answers

What are your best practices for learning Business Statistics? [more inside]
posted by winna on May 26, 2009 - 4 answers

I am trying to fit my data onto a sigmoidal function. The fit won't be perfect, but I am stuck with it for now. To help with this, I have been (very generously) given a spreadsheet that creates a sigmoidal curve if the values a, b, x0 and x are known. How do I get these values? [more inside]
posted by doctor.dan on May 24, 2009 - 8 answers

How does statistical analysis differ when analyzing the entire population rather than a sample? [more inside]
posted by jedicus on May 22, 2009 - 9 answers

Help me try and figure out how many times my podcast is being downloaded. I have requests, unique hosts, bytes downloaded, etc. but while I understand what each mean individually, I'm not sure which to "trust". [more inside]
posted by arniec on May 14, 2009 - 5 answers

I'm looking for fields of research involving emotional awareness and regulation which need a lot of statistics and machine learning. [more inside]
posted by anonymous on May 13, 2009 - 3 answers

I need a good statistics book! [more inside]
posted by Brennus on May 7, 2009 - 14 answers

How does FeedBurner calculate total item use? [more inside]
posted by futility closet on May 6, 2009 - 1 answer

How safe is it to walk around in London compared to major American cities? What are good sources of comparison for violent crime rates in international cities?
posted by East Manitoba Regional Junior Kabaddi Champion '94 on May 6, 2009 - 26 answers

Statisticians, help me work some census cross-referencing magic. [more inside]
posted by letahl on May 4, 2009 - 9 answers

Are global birth and death rates roughly consistent over the course of a day/month/year? (Are there are any clear patterns of daily or seasonal spikes?) [more inside]
posted by kalapierson on Apr 30, 2009 - 5 answers

Generating XML documents help? I work with the county health department, and have been asked to come up with a way to create, store and manipulate metadata for various datasets we store internally on a network drive. Basically I think the simplest thing to do is to create an xml file stored in the same directory with any dataset. Preferably I can do this with infopath 2003 or free software, and using the Dublin Core standard for metadata. I've seen the 5 year old answers on Dublin Core Metadata from this Ask, but I need to let my coworkers create the data first, and that mostly covers storage/database solutions. Looking through various DC list archives hasn't been helpful. [more inside]
posted by gryftir on Apr 28, 2009 - 15 answers