Can you recommend a statistics book which is appropriate for the stats required for basic bioscience / clinical research? [more inside]
posted on Jul 19, 2008 - 7 answers

Can one perform Pearson's correlation or a variant with unequal numbers of rows? [more inside]
posted on May 1, 2008 - 7 answers

Is it possible to estimate the standard deviation of an investment's return after "y" years, if you know the investment's mean annual return and standard deviation? [more inside]
posted on Mar 25, 2008 - 14 answers

Statistics-filter: I need to establish to what extent student performance on a particular standardized test is predicted by each of the following: GPA, standardized test scores and a couple of other miscellaneous numerical factors. How do I go about this? [more inside]
posted on Mar 6, 2008 - 11 answers

I'm taking statistics math this semester, and I'm wondering if there be any geeky statistics math-related podcasts that will help me wrap my head around this tricky subject matter (and maybe even enjoy it). [more inside]
posted on Jan 26, 2008 - 9 answers

Please settle an ill-informed bar argument re. Russian Roulette. [more inside]
posted on Jan 3, 2008 - 25 answers

Statistics question: How can I calculate the odds of flipping a coin to get x consecutive heads anywhere within a data set of y flips. (more inside) [more inside]
posted on Jan 3, 2008 - 19 answers

I need a tool to help me analyze the probability of certain events occurring regarding a pool of X dice for a game I am creating. See my examples below. [more inside]
posted on Dec 21, 2007 - 7 answers

Given a fair die with s sides, what is the expected number of rolls r before I get o outcomes with the same value v in a row? [Note this is emphatically NOT a homework problem; I just really want to know, feel like I should be able to figure it out, can't, and it is driving me nuts.] [more inside]
posted on Dec 19, 2007 - 30 answers

What is the TERM for the three-decimal place, fraction-of-one "percentage" format used in baseball statistics? [more inside]
posted on Nov 20, 2007 - 15 answers

Details of the German tank counting method (as seen on reddit)? [more inside]
posted on Sep 19, 2007 - 13 answers

Does anyone have any data for human error while operating a timing device? Litigeous details and much [more inside]
posted on Aug 3, 2007 - 31 answers

Statistics/Lottery question; Please settle this argument between a friend and I about the Florida state lotto. [more inside]
posted on Aug 2, 2007 - 26 answers

I'm looking for books on survey design and statistical analysis. [more inside]
posted on Jul 31, 2007 - 4 answers

StatisticsFilter: Can someone explain - with examples - why R^2 (r-square) values are not appropriate for use with non-linear regression models. [more inside]
posted on Jun 21, 2007 - 5 answers

i've been looking at reviews on amazon for introductory stat textbooks, and i can't seem to find a single one that doesn't have blatantly contradictory reviews. [more inside]
posted on Apr 2, 2007 - 8 answers

How do I determine whether the difference between two or more proportions is significant? [more inside]
posted on Mar 16, 2007 - 7 answers

Mathematicians, I've always suspected there is a real opportunity to exploit the inefficiencies of the online sports betting markets and amateur bettors and make serious money. Have you felt the same way or am I kidding myself? [more inside]
posted on Dec 17, 2006 - 7 answers

How do I calculate the mean of a frequency distribution on an HP 48SX calculator? [more inside]
posted on Sep 27, 2006 - 6 answers

What is Multivariable Testing, really? It was mentioned in this NYTimes article, but the term is only ever used in relation to QualPro, Inc.. What is the real mathematical/statistical technique they're using? Is this related to the Taguchi Method? Can someone explain it to me?
posted on Sep 19, 2006 - 5 answers

I need a little help figuring out the odds of a baseball pool scenario actually occurring. (And correctly constructing this question, it looks like). [more inside]
posted on Sep 7, 2006 - 18 answers

Mrs. Everichon is convinced that there is a law or principle (as in "Foo's Law") which describes the phenomenon wherein a pond can take weeks to become 50% covered in algae, but then the remaining 50% takes only a day. [more inside]
posted on Jul 25, 2006 - 9 answers

How do I process user ratings of content without skewing results of items that have only been rated once? [more inside]
posted on Jul 10, 2006 - 19 answers

Besides the Monty Hall paradox, what are some other counterintuitive math problems that require a bit of a mind warp? [more inside]
posted on Mar 21, 2006 - 89 answers

Question about semi-sophisticated statistics and financial modeling - lets say you have N asset classes - each class has a mean rate of return and a standard deviation of returns. Also, assume you hold a portfolio comprised entirely of these N asset-classes, in certain proportions. How do you determine the probability that the portfolio might produce the a certain rate of return over P periods?
posted on Mar 2, 2006 - 9 answers

How do I interpret the statistical results of an ESP test? At this ESP testing site there's a tabulation of the daily results of people from across the world attempting to guess which of 5 cards is a target card. In the results for 12/20/2005 the top scorer had 13 hits in 25 trials for a hit rate of 52%, random chance would be 0.20. Now the website says the odds against this are 2708 to 1. First question: is this correct? Second question: if it is correct, then how weird is this statistically speaking given that there were a total of 19,886 trials by 189 users. [more inside]
posted on Dec 21, 2005 - 22 answers

Basic statistics: given P possible outcomes, how many different P's are chosen on average when N choices are made? [more inside]
posted on Dec 11, 2005 - 23 answers

Probability: A coworker is having an issue with deriving a few formulas for a Weibull distribution. Any pointers? [more inside]
posted on Nov 7, 2005 - 2 answers

My boss' boyfriend does human factor engineering for a pharmaceutical company. They're performing an experiment and his boss has given him a number for a sample size that the boyfriend thinks is too low. He has to be able to justify to his boyfriend that this number is too low within the next 40 minutes. I can't remember anything about statistics but I know there's a way to figure this out. (More inside!) [more inside]
posted on Jun 17, 2005 - 9 answers

Remedial weighted averages for the mathematically illiterate – or, can the 10% of you who understand math help the remaining 95% of us who don't? [mi].
posted on Jul 11, 2004 - 4 answers