Books



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digs
Permanent link - Posted 22 hours ago (via mathlesstraveled.com)
At long last, here is the solution I had in mind for the Wizard’s rational puzzle. Recall that the goal is to figure out the numerator and denominator of a secret rational number, if all we are allowed to do … Continue reading →...
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digs
Permanent link - Posted 22 hours ago (via rjlipton.wordpress.com)
A question on finite simple groups Cropped from Schock Prize src Michael Aschbacher is a professor of mathematics at Caltech. He was a leading figure in the classification of finite simple groups (CFSG). Today Ken and I ask a simple question about proofs that appeal to CFSG. The CFSG was originally announced in 1983 amid […]...
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digs
Permanent link - Posted 22 hours ago (via andrewgelman.com)
Continuing from our earlier discussion . . . Yair posted some results from his MRP analysis of voter turnout: 1. The 2018 electorate was younger than in 2014, though not as young as exit polls suggest. 2. The 2018 electorate was also more diverse, with African American and Latinx communities surpassing their share of votes […] The post 2018: Who actually voted? (The real story, not the exi...
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digs
Permanent link - Posted 22 hours ago (via andrewgelman.com)
John Spivack writes: I am contacting you on behalf of the biostatistics journal club at our institution, the Mount Sinai School of Medicine. We are working Ph.D. biostatisticians and would like the opinion of a true expert on several questions having to do with observational studies—questions that we have not found to be well addressed […] The post Matching (and discarding non-matches)...
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digs
Permanent link - Posted 22 hours ago (via andrewgelman.com)
We’re always discussing election results on three levels: their direct political consequences, their implications for future politics, and what we can infer about public opinion. In 2018 the Democrats broadened their geographic base, as we can see in this graph from Yair Ghitza: Party balancing At the national level, what happened is what we expected […] The post 2018: What really hap...
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digs
Permanent link - Posted 22 hours ago (via andrewgelman.com)
This problem comes up a lot: We have multiple surveys of the same population and we want a single inference. The usual approach, applied carefully by news organizations such as Real Clear Politics and Five Thirty Eight, and applied sloppily by various attention-seeking pundits every two or four years, is “poll aggregation”: you take the […] The post Hey! Here’s what to do ...
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digs
Permanent link - Posted 3 days ago (via blog.computationalcomplexity.org)
With all the news about elections, caravans, shootings and attorney generals, maybe you missed the various stories about real transformations at our top universities. On October 15 MIT announced the Stephen A. Schwarzman College of Computing. Schwarzmann donated $350 million to the effort as part of an expected billion-dollar commitment that will pay for a new building and fifty new faculty.“As ...
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digs
Permanent link - Posted 3 days ago (via flowingdata.com)
A combination of a bivariate area chart, animation, and a population pyramid, with a sprinkling of detail and annotation.Tags: animation, R...
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digs
Permanent link - Posted 3 days ago (via flowingdata.com)
Charles-Joseph Minard, best known for a graphic he made (during retirement, one year…Tags: book, Charles-Joseph Minard...
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digs
Permanent link - Posted 3 days ago (via flowingdata.com)
The Earth Puzzle by generative design studio Nervous System has no defined borders.…Tags: Earth, geometry, Nervous System, puzzle...
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