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.
In 2013, the average interest rate on a 30-year conforming loan of $417,000 or less was 3.98 percent, according to Freddie Mac. In May, the average rate was 4.19 percent â down from 4.34 in April. Rates on so-called jumbo mortgages of more than $417,000 are also holding largely steady. In May, the average interest rate on a jumbo loan was 4.45 percent, according to mortgage information site HSH.com. For all of 2013, it was 4.23 percent.