The Daley administration has defended its promotion policy, offering statistical evidence that differences in scores within bands have no correlation with performance on the job.

ECONOMIST: Fire services

In statistical terms: Default rates explain away group differences in scores, leaving no residual impact that can be attributed to race.

FORBES: Proxy Fight

Some statistical back flips needed to be performed to compare the scores of a 4-year-old entering kindergarten with those of a 5-year-old, and the two test scores were combined.

WSJ: New York City Gifted-and-Talented Program's Math Is Questioned

At their presentation in Phoenix, summarizing research for a paper to be finished soon, they compared the world ranking of the top 200 players to a ranking of those same players' skill levels calculated using a statistical model they also devised, which simultaneously takes into account players' adjusted tournament scores and the difficulty of the courses.

WSJ: Why Scientists Love to Study Golf