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Millionaires by Profession Statistics

What is the breakdown of millionaires by profession? (Statistics with sources). [more inside]
posted by GleepGlop on Oct 20, 2011 - 10 answers


A 1 percent for your thoughts.

How much money do you have to make to be in "the top 1 percent", in world terms? [more inside]
posted by crazylegs on Oct 14, 2011 - 25 answers

What are the best methods for this type of survey?

What sort of survey are my colleagues planning? It would involve questionnaires dropped off at a variety of businesses (tour agencies and hotels, mostly), aimed at capturing details about their clients. This doesn't seem to fit the examples I see discussed in online resources on survey methods. To top it off, both the time frame and budget are limited. Where can I find best practices for this sort of survey--and how can I determine which best practices should be given highest priority? [more inside]
posted by col_pogo on Oct 14, 2011 - 6 answers

You R to do this again, and again, and again...

[StatsFilter] I have a data set which consists of 1000 groups. I'd like to perform the same commands on each group using the statistical software R. How can I write a loop function to perform this task? Or would any of the functions from the *apply family do a better job? [more inside]
posted by fix on Oct 10, 2011 - 12 answers

Crime Rate Statistics

Please clear up the use of statistics by two people trying to compare crime rates in one huge city (NYC) to Charleston, SC. a much smaller city. [more inside]
posted by Elsie on Sep 29, 2011 - 25 answers

Where is religiosity growing and where is it shrinking?

Where is religiosity growing and where is it shrinking? [more inside]
posted by iftheaccidentwill on Sep 23, 2011 - 5 answers

In search of SAS-fu

What are your beginner/intermediate SAS handbook recommendations? [more inside]
posted by thisjax on Sep 22, 2011 - 4 answers

How big a role should the neighborhood play in a daycare choice?

How do I interpret the crime statistics on a given neighborhood in my city? And is it then appropriate to make a judgment call on whether or not it's safe to put my child in a daycare there using that information? [more inside]
posted by kitcat on Sep 21, 2011 - 21 answers

What sport has the most criminals?

What professional sport has the most criminals? [more inside]
posted by Grither on Sep 19, 2011 - 10 answers

Help with Financial Research -- Statistics

I'm currently performing a mock research comparative analysis for a class. I'm researching the financials of 'our' metrics versus our highest competitors. One of the questions I'm attempting to answer asks if the variances (or standard deviations) of 'our' profit margins are statistically similar to the variances in profit margins of our competitors over a five year period. I have 11 companies representing the profit margins of our competitors, and of course the reports on our profit margins for these five years. Now it's been a while since my last stats course... so I'm wondering, would I use an F or Levene's Test to answer this? Or am I completely off base... and should look to another form of analysis.
posted by Steve073190 on Sep 19, 2011 - 4 answers

number of U.S. products containing HFCS

I'm trying to find the number of food products that are sold in the U.S. that contain high fructose corn syrup. I've done some preliminary searches and have found some lists, but I've come up dry when trying to find actual numbers. I'd like a reliable source that I can cite, but I'll take almost anything at this point. I am at a university and have access to a large number of subscription database resources, so I'll keep looking. But I thought metafilter might be able to help out here.
posted by pahool on Sep 15, 2011 - 6 answers

Based on my eyes and a hunch I conclude these two variables are statistically different?

How can I test if one predictor variable in a regression is significantly better than another predictor variable? i.e. If I regress X against A I get an r^2 of .99 and when I regress X against B I get .98. I need a test to see whether this difference is statistically significant. [more inside]
posted by vegetableagony on Sep 13, 2011 - 16 answers

ILL turnaround stats for research libraries?

Librarians: Do you know of any current publications that rank borrowing performance - specifically ILL turnaround time - for academic libraries? [more inside]
posted by ryanshepard on Sep 9, 2011 - 5 answers

Numbers in the news

What's that quote? Something about each statistic in a news article reducing readership by x%. I can't for the life of me remember the exact words and who said it.
posted by tavegyl on Sep 7, 2011 - 4 answers

Probability Question

Probability Question [more inside]
posted by nickhb on Sep 3, 2011 - 15 answers

How can I find the average of multiple columns in excel without selecting each individual row that I want averaged?

How can I find the average of multiple columns in excel without selecting each individual row that I want averaged? [more inside]
posted by gibbsjd77 on Sep 2, 2011 - 8 answers

Where can I find statistical information on the effects of piracy on American shipping in the nineteenth century?

Where can I find statistical information on the effects of piracy on American shipping in the nineteenth century? [more inside]
posted by synecdoche on Aug 31, 2011 - 5 answers

How do TV channels figure out how many people watched a particular episode (e.g. XX million watched American Idol)?

How do TV channels figure out how many people watched a particular episode (e.g. XX million watched American Idol)? I often hear things like XX million viewers watched American Idol or some other show. How do the news guys / broadcasters come up with these numbers?? Surely they are not able to track what is being watched in peoples homes. So I guess this is some kind of math or projection. Any idea how this is done?
posted by r2d2 on Aug 27, 2011 - 17 answers

Statistics filter: How do I calculate the keyspace size of a password?

How do I figure out what the size of this password's keyspace is? [more inside]
posted by vmrob on Aug 27, 2011 - 10 answers

How do I teach myself something when I don't even know what I want to learn?

I think I need to learn about time series analysis. My statistics background is so mediocre that I'm not even sure this is the thing I actually need to learn. How far in over my head am I? [more inside]
posted by ootandaboot on Aug 25, 2011 - 7 answers

I'm a rank amateur

What are some basic math concepts I can use to understand and develop a ranking system? [more inside]
posted by rhizome on Jul 26, 2011 - 7 answers

Alternatives to a t-test?

If I have a dependent categorical variable with two values (say, basketball fans vs non-fans) and an independent numerical variable (say, height in millimeters) what statistical tests could I use to analyze my data, besides a t-test? [more inside]
posted by danceswithanonymity on Jul 21, 2011 - 13 answers

Preparing data for Cohen's Kappa in SPSS

Statistics Filter: help me set up my coding data to calculate Cohen's Kappa as a measure of interrater reliability. Taking data from CAT to SPSS. [more inside]
posted by activitystory on Jul 14, 2011 - 3 answers

Why are divorce rates higher for those who have lived together before marriage?

Why is the divorce rate higher for those who have lived together before marriage than those who haven't? [more inside]
posted by coraline on Jul 12, 2011 - 17 answers

Need help with a probability question

Can someone help with a probability question? [more inside]
posted by caroljean63 on Jun 25, 2011 - 22 answers

Shouldn't a point estimate be the midpoint of its confidence interval?

Shouldn't a point estimate be in the center of its confidence interval? [more inside]
posted by lakeroon on Jun 22, 2011 - 12 answers

Calculus? Is that it?

Why can't I read this? And what sort of classes would I need to make sense of this? [more inside]
posted by Tennyson D'San on Jun 21, 2011 - 12 answers

How do I make RBI into a useful statistic?

Rather than just Runs Batted In, I would like to be able to find out how successful a player is in a given RBI opportunity. Is there a way to discover (for example) what percentage of the time a player drives in the run when there is a runner on third and none out (or one out...or two out). I'm aware of the existence of B-ref, but I wasn't able to figure out how to find this type of data. [more inside]
posted by Carlo on Jun 10, 2011 - 8 answers

Statistics: Restricted range and linearity/non-linearity.

StatisticsFilter: Range restriction and the strength of linear and non-linear relationships. Help? [more inside]
posted by tybeet on May 31, 2011 - 6 answers

Boltzmann brain teaser

In his TED talk, Sean Carroll very briefly discusses Feynman's explanation about how the universe we can see and experience is not a statistically lucky perturbation, before moving on to the rest of his lecture. In other words, Feynman seems to discount the "Boltzmann brain" hypothesis, that we're not just the ephemeral product of a lucky shuffle of a metaphorical box full of marbles. Can someone explain this to me in words other than Carroll's, i.e., what evidence Feynman was using to prove his argument?
posted by Blazecock Pileon on May 16, 2011 - 7 answers

What statistical analysis of historical prices would be useful for a buyer?

What statistical analysis of historical prices would be useful for a buyer? [more inside]
posted by Theta States on May 12, 2011 - 1 answer

So how do people make those nice graphs?

What are some super simple graph making programs? [more inside]
posted by boobjob on May 11, 2011 - 11 answers

dying at the cemetary

How many people die while visiting a cemetery each year? In the US. Of any causes. Are there any statistics for this kind of thing?
posted by GernBlandston on May 9, 2011 - 3 answers

Half-court shot stats in the NBA

Where can I find statistics on half-court shots in the NBA? [more inside]
posted by suckerpunch on May 4, 2011 - 6 answers

Wedding bells... again...?

What's the mean number of marriages for Americans? [more inside]
posted by WidgetAlley on Apr 24, 2011 - 20 answers

How many books are checked out of public libraries per year?

On average, how many books are checked out of a US public library, per year? Has there been a decline or an incline books being checked out in the last couple of years? [more inside]
posted by carpyful on Apr 21, 2011 - 8 answers

Recommendations for an "Intro to R" course in the NYC area

Help me spread my love for R. [more inside]
posted by docgonzo on Apr 21, 2011 - 9 answers


What is wrong with my composite z scores? [more inside]
posted by Mrs.Spiffy on Apr 13, 2011 - 7 answers

Cohen's kappa in R?

Statistics filter: Cohen's kappa and inter-rater reliability in R? [more inside]
posted by SymphonyNumberNine on Apr 12, 2011 - 2 answers

Hard numbers on a hard drug

Seeking numbers/statistics: outcomes of heroin addiction and how likely are they? [more inside]
posted by radioaction on Apr 11, 2011 - 8 answers

Software for beautiful, interactive data visualization

Do you have recommendations for good data visualization software for the Hans Rosling fan? [more inside]
posted by zresearch on Apr 5, 2011 - 6 answers


How do I write a stata program that will loop through multiple variables? [more inside]
posted by dazed_one on Apr 4, 2011 - 5 answers

Where can I find historical data about employment for large companies?

I'm looking for historical employment, revenue and profit information for the top 500 businesses in the world, and I don't know where or how to look for it. [more inside]
posted by Freen on Apr 4, 2011 - 10 answers

How to transform random variables from a non-normal distribution to a normal distribution?

How would I find a function that transforms random variables from an non-normal probability distribution to a normal distribution? [more inside]
posted by formless on Mar 30, 2011 - 9 answers

Beginner's guide to statistical/quantitative finance?

I just read Victor Niederhoffer's Practical Speculation. Most of the book is devoted to analyzing trading opportunities using statistics. I am looking for other resources devoted to this topic. [more inside]
posted by prunes on Mar 27, 2011 - 1 answer

What are the odds?

What are the odds, really, of having identical triplets? [more inside]
posted by pyjammy on Mar 23, 2011 - 24 answers

Do brothers have more brothers?

StumpedDadFilter: Do boys have more brothers or more sisters? [more inside]
posted by paulash on Mar 23, 2011 - 31 answers

Need Help--Stat!

I'm taking a statistics class (for social sciences) and need help finding really dumbed-down explanations of concepts, including how to use associated formulas. [more inside]
posted by oceanview on Mar 22, 2011 - 10 answers

Does "1 in a million" stuff happen?

Suppose that an event has a 1 in a million chance of happening in 1 year. The chance that it will happen once in a million years is %63. Explain. [more inside]
posted by antiquark on Mar 15, 2011 - 13 answers

Statistics help

How do I calculate whether these figures are statistically significant? [more inside]
posted by ms.codex on Mar 15, 2011 - 11 answers

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