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.
The DUS loan is guaranteed by Fannie Mae to the purchaser of the securities issued by the DUS lender. These securities are backed by the mortgage loan. The Fannie Mae guarantee is viewed as a significant enhancement to the quality of the loan, thus driving up the value of the security to an investor.This enhancement permits the DUS lender to deliver a loan that includes an attractive interest rate to the borrower.he Fannie Mae guarantee is viewed as a significant enhancement to the quality of the loan, thus driving up the value of the security to an investor. This enhancement permits the DUS lender to deliver a loan that includes an attractive interest rate to the borrower.