For a symmetric distribution (where the median equals the midhinge, the average of the first and third quartiles), half the IQR equals the median absolute deviation (MAD). The median is the corresponding measure of central tendency. Identification of outliers (see below).
SLM Corporation (commonly known as Sallie Mae; originally the Student Loan Marketing Association) is a publicly traded U.S. corporation that provides consumer banking. Its nature has changed dramatically since it was set up in 1973. At first, it was a government entity that serviced federal education loans.
Sallie Mae has long drawn the ire of student loan borrowers struggling to pay back their debt. But as it turns out, they might have had a real reason to complain. On Wednesday, the federal government and the Washington state Attorney General sued Navient, formerly part of Sallie Mae, for allegedly cheating borrowers out of their repayment rights. Another lawsuit filed by the Illinois Attorneys General named both Navient and Sallie Mae.