696 posts tagged with statistics.
Displaying 151 through 200 of 696. Subscribe:

Ref.Cat? s.e.? Stats help needed!

Would you be kind to someone who is culturally proficient, but statistically deficient? Specifically, what is going on in the tables at the end of this paper? [more inside]
posted by robself on Jan 26, 2012 - 6 answers

Frequency approximation for series of events

So I want to calculate rate of events as a function of time... [more inside]
posted by qxntpqbbbqxl on Jan 21, 2012 - 17 answers

Will fit statistical models for food (and additional money for rent and whatnot)

I've been focusing on getting a tenure-track academic position for a long time, but I feel like it's foolish not to be looking elsewhere for work, too. What jobs might I be a (reasonably) good applicant for? (relevant personal details below the fold) [more inside]
posted by noahpoah on Jan 20, 2012 - 14 answers

Help me make sense of the facebook

I'm in charge of inviting people to Facebook events for a small nonprofit. We've started tracking the number of people that say they are going and maybe going on Facebook vs. the number of people who actually show up to the event. It looks like of the people that say they are going or maybe going to an event about 50% actually show up. Is this a normal show up rate? Has anyone done statistical study on this kind of data? [more inside]
posted by gregr on Jan 19, 2012 - 19 answers

Creating my own crime map

I want to create a "crime map" of a city over time. I know the dates of the crimes, and I know the physical address. I'd like for the crime map to be something that I could show a crowd in a presentation such that the audience members could witness for themselves how a particular part of the city changed as time went on. I was thinking of Gapminder as the ideal, but spatially and dynamic instead of simply numbers. I suppose it'd be possible to get something up and going with GIS, but I was wanting to do it in a way that was idiot-proof as this is only valuable to me if I can do it easily without a ton of time learning some new program.
posted by scunning on Jan 18, 2012 - 3 answers

When calculating a statistical average, is it reasonable to remove outliers?

When calculating a statistical average, is it reasonable to remove outliers? [more inside]
posted by JPigford on Jan 13, 2012 - 31 answers

Looking for web resource for Canadian court statistics.

How can I locate sources for statistics on the outcomes of Canadian criminal court cases, that include such data as type of defence counsel (ie Legal Aid, from large firm, high profile, new in field, or preferably cost of counsel), amount of time before trial, income/profession of defendant, sentence given, and sentence actually carried out? Does such data even exist? I'm only asking out of curiosity, not for any professional or education project.
posted by rupeh on Jan 11, 2012 - 7 answers

30 Vegans Agree...."Better to be overprepared than underprepared."

How do I go about gathering statistics regarding vegan/vegetarians? [more inside]
posted by Kitteh on Jan 6, 2012 - 10 answers

Value Over Replacement Database

Sports nerds of MeFi: where do you go for your downloadable sports statistics database needs? [more inside]
posted by no regrets, coyote on Jan 3, 2012 - 8 answers

A little help on a statistics paper on inflation, in German.

I am looking for a little translation help on an inflation statistics paper in German language (look in more inside for the link). This official paper is quite interesting for students of statistics and social students interested in perceived cost of living vs actual cost of living, in Europe as well as in any other country, as it allegedly shows that indeed there were some excessive rouding of prices during the conversion to euro in Germany. [more inside]
posted by elpapacito on Jan 2, 2012 - 5 answers

Help with statistics!

Statistics help - What test should I use? Help needed for a novice. [more inside]
posted by quodlibet on Dec 30, 2011 - 8 answers

Are there any recent (last 3-4 years) surveys of American reading habits?

Can you point me to recent surveys of reading habits in the United States? I'm hoping to find statistics from the last 3-4 years about anything from the average number of books read, time spent reading, digital reading, to whatever else you know about. [more inside]
posted by lilac girl on Dec 14, 2011 - 6 answers

More arrivals or departures?

Are there more arriving or departing flights in the United States? Bonus: previous years, other countries, domestic vs. international, etc.
posted by michaelh on Dec 12, 2011 - 16 answers

The Saberprose Of Any Sport.

Who are the writers who take the statistics of sports and look at them in new interesting ways and can write a bit, too? [more inside]
posted by mreleganza on Dec 8, 2011 - 12 answers

Statistics terminology

What does "posthoc" mean? [more inside]
posted by cnanderson on Nov 30, 2011 - 7 answers

Weighted regression?

Excel statistics question (linear regression with weighted data points) [more inside]
posted by dabug on Nov 30, 2011 - 9 answers

The Pattern in the Rough

What tools are available for determining patterns in short, semi-random sequences of variables? [more inside]
posted by Orange Pamplemousse on Nov 23, 2011 - 8 answers

Use statistics to find cheaters

What would be a good statistical approach to find manipulated test results? [more inside]
posted by lord_yo on Nov 14, 2011 - 10 answers

Help a nerdy girl learn R-programming

Anyone know of good online or in-person (in the Philadelphia) training options for R statistical programming? [more inside]
posted by moshimosh on Nov 10, 2011 - 4 answers

By answering this question, you will have proved yourself a genius.

The presence of A is a good sign B exists, but as people learn about the A trick they take pains to display it so it isn't as reliable a sign of B anymore. What's the term for this, is its rate of adoption reliably based on other variables, and who writes about it? [more inside]
posted by michaelh on Nov 9, 2011 - 20 answers

How do I find a mean response confidence interval in nonlinear regression?

How do I calculate the confidence interval for the mean response of some general nonlinear fit? [more inside]
posted by selenized on Nov 7, 2011 - 12 answers

Can you give me stats direction? Yes/No?

(StatisticsFilter) I'd like to compare two binomial variables from the same population... [more inside]
posted by slab_lizard on Nov 6, 2011 - 8 answers

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

Page: 1 2 3 4 5 6 7 8 ... 14