|Filed Under:||Academics / Mathematics|
|Posts on Regator:||512|
|Posts / Week:||1.3|
|Archived Since:||December 12, 2008|
When an epidemic such as Zika threatens to sweep across the country, public-health workers and policy makers need some basic information in order to plan a strategic response to make the best use of limited resources to protect the public from the spread of the disease. Enter the mathematicians and statisticians.
Jackie Bradley Jr.'s bid to supplant Joe DiMaggio atop the Major League Baseball hit-streak list ended at 29 games. That's not surprising as many observers consider Joltin' Joe's streak the most difficult record to break in sports.
MLB.com really wants to give away $5.6 million. But there’s a catch: To claim the prize, one needs to participate in Major League Baseball’s Beat the Streak contest and assemble a batting streak that surpasses Joe DiMaggio’s run of 56 consecutive games in 1941. This isn't easy.
?Periodical cicadas live underground for 13 or 17 years before emerging to mate, lay eggs and die off, and today, there are 15 known broods in the U.S. There used to be 16 and the current number may dwindle if the teetering Brood VII goes extinct.
A number of government surveys are conducted in face-to-face interviews for a variety of reasons. Sometimes, physical material must be collected or the survey is too long and complex to conduct by telephone or mailed questionnaire. The results are some of the richest and most complete survey data available.
The litigants in a recent Supreme Court case suggested using the American Community Survey, an annual sample of 2.5% of U.S. households that asks about citizenship, to estimate the citizen voter-age population. The agency that collects the data disagrees. Show More Summary
Hailstorm data help meteorologists improve forecasts, insurers assess damages and businesses and citizens minimize exposure.
Today, apparently, is Square Root Day. And it's rarer than Pi Day, which occurs once a year--or more if you celebrate on Pi Approximation Day.
?How do I love “the”? If you ask James W. Pennebaker, the author of “The Secret Life of Pronouns,” the answer is a lot. Mr. Pennebaker is a pioneer in computerized textual analysis who specializes in plucking meaning from the unlikeliest of words: articles (such as “the”), pronouns, prepositions, conjunctions, auxiliary verbs, negations and selected adverbs.
Government agencies are required to conduct a cost-benefit analysis for every regulation expected to cost $100 million or more in a year, and to help assess the benefits, the agencies often use a device called the value of a statistical life.
While today isn't the Super Pi Day of last year, where the date format -- 3-14-15 -- extended the run of digits and encouraged math lovers to get married,we didn't want to let today go pi-less. Hence, a roundup of pi pieces.
There are around 100,000 potential drinking-water contaminants, but the U.S. Environmental Protection Agency regulates only about 90 of them. But even when the agency decides to regulate a contaminant, the process can take years.
As numbers go, the monthly nonfarm payroll report offers some of the most parsed and open-to-interpretation there are.
This past week's Numbers column on leap day included a box of facts that led a reader to write in about the accuracy of one tidbit--that the chance of being born naturally on Feb. 29 is roughly 1 in 1,461. Turns out, there are several schools of thought on the calculation.
????By 46 B.C., the calendar had gotten out of hand.
A trio of researchers examined the credit histories of 12 million U.S. consumers, identified romantic partners and then tracked their unions and breakups over a 15-year period. Their conclusion: people with higher credit scores are more likely to form committed relationships and stay with a partner longer.
Opinion polls based on probability samples have accurately reflected public sentiment for decades. But declining response rates and the time and expense required to collect the data has spurred interest in a fast and cheap alternative: online polls, which typically rely on nonprobability samples.
The number of possible opening moves in Go is 361. In chess, the possible opening moves is 20 (4 knight moves and 16 pawn moves). That disparity grows as the games advance and points up a breakthrough in artificial intelligence.
?Figuring out the odds of winning the Powerball lottery draws upon a vein of applied mathematics known combinatorics, which deals with ways of arranging and distributing objects.
Rather than repeating the same spiel on the Powerball, we figured we could point you to some of the writings we've read on lottery fever.