in discrete time is the transformation of the series to a new time series where the values are the differences between consecutive values of the original series.
(outcome or variable) means "having only two possible values", e.g.
A probability density function is a curve used
In predictive modeling, data partitioning is the division of the data available for analysis into two or three non-overlapping
Promoting better understanding of statistics throughout the world.
New Editor of Journal of Statistics Education
Read Peter's Letter to the Editor in Saturday's Washington Post.
Last year's popular story out of the Predictive Analytics World conference series was Andrew Pole's presentation of Target's methodology for predicting which customers were pregnant.
Evidence show that there is no significant difference between taking an online introductory statistics course and a traditional in-person class.
Facebook began trading around 11:30 this morning, and I spent 8 minutes
Newly elected American Statistical Association (ASA) Fellow, and recognized for his outstanding professional contributions to and leadership in the field of statistical science.
Arizona's immigration law goes before the Supreme Court this week...
I saw this job posting a while ago, and, in my next life,
David Unwin, Emeritus Chair in Geography, Bubeck College, University of London (and instructor at Statistics.com!) will be awarded the Association of American Geographers (AAG) Ronald F. Abler Distinguished Service Honors at the upcoming annual meeting next week.
February 12 was the 80th anniversary of the birth of Julian Simon, an early pioneer in resampling methods.
Statistics for Future Presidents - Steve Pierson, Director of Science Policy at ASA wrote interesting blog wondering how statistics for future presidents (or policymakers more generally) would compare with the recommended statistical skills/concepts for others. Take a look and let him know!
Teaching Geographic Information Science and Technology in Higher Education, 2012 (Wiley)
The story of the prospective Facebook IPO, and prior IPO's from LinkedIn, Pandora, and Groupon all involve "data scientists". Read an interview with Monica Rogati - Senior Data Scientist at LinkedIn to see the connection.
Dr. Michelle Everson is recognized for her outstanding contributions to and innovation in the teaching of elementary statistics.
John Elder's presentations on common data mining mistakes are a must-see if you have any experience or plans in the data mining arena.
"Any claim coming from an observational study is most likely to be wrong." Thus begins "Deming, data and observational studies," just published in "Significance Magazine" (Sept. 2011).
I was watching a Washington Nationals game on TV a couple of days ago, and the concept of "expected value" ...
A neurosurgeon, pathologist and epidemiologist are each told to examine a can of sardines on a table in a closed room, and present a report.
What do teenagers want? More importantly for the music industry, what music will they buy?
Advertisers shy away from round numbers, believing that $99 appears significantly cheaper than $100...
Did the NCAA get the March Madness rankings right? Check out SportsMeasures.com
What does Matt Asher's article "Attack of the Hair Trigger Bees" have to do with global warming? Matt Asher runs statisticsblog.com ...
The first Gallup Poll was published in October, 1935. In America Speaks,
Thinking about careers that use statistics? The job title "catastrophe modeling assistant" caught my eye recently in a job announcement. ...