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.
The average interest charged to borrowers for a 30-year, fixed rate loan fell to 4.21% from 4.29% last week, according to Freddie Mac's weekly mortgage rate report.Rates have not been this low since the week of November 7, when they were at 4.16%.The 15-year, fixed rate mortgage, a popular loan for homeowners refinancing existing mortgages, hit 3.32%, down from 3.38% last week.Related: Buy vs. rent: What you'll pay in the 10 biggest cities.ayments on a $200,000 30-year, fixed-rate mortgage would be only $979 a month at a rate of 4.21%. Borrowers with rates closer to the historical norm of 6% would pay about $1,200 a month. Related: Nearly half of home sales are all cash.