Stats-filter: Given a binary matrix, if I know the total number of ones in a given row and a given column, can I calculate the probability that a given position contains a one? [more inside]
posted by chrisamiller on Dec 16, 2009 - 24 answers

I'm rolling 5 dice. I win if I roll two 1's, one 2, or one 3. What are my odds of winning, expressed as a percentage? [more inside]
posted by JDHarper on Dec 9, 2009 - 3 answers

Actuarial / statistics geeks: a puzzle for you. [more inside]
posted by Meatbomb on Dec 8, 2009 - 18 answers

Hi, I have a specific question about paired t-tests! [more inside]
posted by amethysts on Nov 13, 2009 - 13 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

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 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

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

How do I graph these data using R's plot() and barplot() commands? [more inside]
posted by bengarland on Apr 9, 2009 - 6 answers

StatisticsFilter: I want to implement A/B testing on my website. What is the relevance test to determine at what point I'm getting valid results? [more inside]
posted by Muffy on Apr 8, 2009 - 6 answers

Are BLS occupational projections data flawed? I've often heard that their projections data is flawed, but I can't find any recent (like 2002 and forward), publicly accessible explanations of how it is flawed or even if it has become less flawed (updated their formula, etc.)? [more inside]
posted by anniecat on Mar 24, 2009 - 3 answers

Looking for resources regarding math in sports. [more inside]
posted by reenum on Mar 17, 2009 - 12 answers

How do I check for linearity? [more inside]
posted by ttyn on Feb 28, 2009 - 9 answers

Paging ROU_Xenophobe and other applied statistics researchers: Why are people who do a significant amount of applied statistics and statistical computing enrolled in poli sci/sociology grad programs rather than statistics? [more inside]
posted by thisjax on Dec 10, 2008 - 8 answers

Stock market related questions-- help me drown in data! [more inside]
posted by Static Vagabond on Dec 9, 2008 - 5 answers

Is there a formula or process to determine how many questions should be on an exam? Given a test bank of "x" number of questions, what "y" number of randomly selected questions constitutes a valid sample? [more inside]
posted by angiep on Dec 2, 2008 - 8 answers

Where can I find the population of US states in 1995? [more inside]
posted by Phire on Nov 13, 2008 - 6 answers

Help me find a video on the changing nature of education and students. [more inside]
posted by micklaw on Nov 1, 2008 - 2 answers

Maximizing a function over orthogonal matrices, or: solving polynomial order 2 systems. Help me out or point me to a better forum / listhost. [more inside]
posted by a robot made out of meat on Oct 26, 2008 - 15 answers

I need to enter the following information into excel, but excel wants to transform one of them into a date format. This is for a statistics class and being used to make a graph of some kind. [more inside]
posted by Jackie_Treehorn on Oct 24, 2008 - 9 answers

Best way to re-learn statistics? Enough that I wouldn't be lost in an advanced, fairly data-intensive psychology class. I took the course at Ga. Tech some years ago, but my old textbook is sooo boring and awful. [more inside]
posted by amtho on Oct 23, 2008 - 17 answers

Please help me understand the concept of variable change as it relates to statistics. (Provoked by the movie 21.) [more inside]
posted by siclik on Oct 13, 2008 - 21 answers

I am looking for examples of really bad research. [more inside]
posted by tickingclock on Sep 21, 2008 - 50 answers

It's late, I'm tired, and I have a probability and coding question that's fairly simple. [more inside]
posted by chrisamiller on Aug 13, 2008 - 10 answers