WSJ: Numbers Guy

The Numbers Guy examines numbers in the news, business and politics. Some numbers are flat-out wrong or biased, while others are valid and help us make informed decisions. Carl Bialik tells the stories behind the stats, in daily updates on this blog and in his column published every other Friday in The Wall Street Journal. Carl, who holds a degree in mathematics and physics from Yale University, also cowrites The Daily Fix, a sports column on WSJ.com. He welcomes your comments at .

WSJ: The Numbers
The Numbers
copyright © 2015 Dow Jones & Company, Inc.
The Wall Street Journal examines the way numbers are used, and abused.

Behind The Numbers: GDP, the Sequel
When the Commerce Department releases its first reading of second-quarter gross domestic product this coming Thursday, there will also be a spate of annual revisions. This happens every year and serves to give more retroactive perspective on the U.S.'s economic growth trajectory.
Pi the Numbers: 22/7
In the day/month format that is used in some parts of the world, 22/7 is celebrated in some circles (ahem) as Pi Approximation Day, where 22 divided by 7 yields a quotient that represents pi.
Behind The Numbers: Baby-Name Data
One reason social scientists and others use U.S. baby names to study cultural trends is simply because the data are readily available.
Behind The Numbers: a PSA on SPFs
One thing fair-skinned beach lovers should keep in mind is that the surest way to prevent sunburn is to avoid exposure entirely: Seek out shade and wear protective clothing and sunglasses that filter out UV rays.
June Jobs Report – The Numbers
Jobs, wages, labor-force participation and more.
Number of the Day: 1
Today's number, 1, comes courtesy of the leap second.
Train of Thought: Sometimes Numbers Speak for Themselves
Last night in baseball--with home runs galore, a cycle and a run of shutouts seen just five times--was a wonderful reminder that numbers are sometimes just cool for the accomplishment they represent.
Number of the Day: $1.64 Billion
"Jurassic World" set a box-office record for the best opening weekend of all-time. Even better? The inflation-adjusted returns of "Gone With the Wind" in 1939.
Behind The Numbers: American Pharoah and 37 Years
By winning horse racing's Triple Crown this past weekend, American Pharoah entered the conversation on where he stands among all-time great thoroughbreds. But ranking American Pharoah is a subjective game.
Better Bets on American Pharoah?
Wagering on American Pharoah to place (come in second or better) or show (third or better)--even for horse players who are convinced the highly touted winner of the Kentucky Derby and the Preakness Stakes is destined to cross the Belmont wire first--might be the best bets.