The average rate on the popular 30-year fixed mortgage fell to 2.78% for the week ending Nov. 5, down from 2.81% the previous week and 3.69% the same week one year ago, according to Freddie Mac. Other mortgage products, including the 15-year fixed, FHA loans and jumbo mortgages, set new record lows for their average rates last week, according to the Mortgage Bankers Association. Volatility...