The major types of bias in the observation bias group include recall bias, interviewer bias, follow-up bias and misclassification bias. Confounding is sometimes referred to as the third major class of bias. It is a function of the complex interrelationships between various exposures and disease.
Today's mortgage rates - April 20, 2017. Mortgage rates barely moved this week, but did decline just enough for 30-year rates to reach new lows for 2017. According to Freddie Mac, the average conforming 30-year fixed-rate mortgage shed two basis points (0.02 percent) to slide to 4.08 percent. Fifteen-year fixed rate mortgages eased a similar amount, with that .02 decline good enough to tie a low for the year.
As of this writing, the average 30-year mortgage interest rate in the United States is 3.73%, but that only tells part of the story. The cost of your mortgage depends on your credit score, the type of loan you choose, and the fees and other closing costs charged by your lender. Here's some more information on the average cost of a mortgage by credit score and type of loan, and how you can estimate your own mortgage payment.