NEW YORK :The dollar gained on the euro and was roughly flat against the yen on Friday as stocks recovered from a sharp selloff and traders weighed whether the Federal Reserve is likely to cut rates in December. A flood of data that was delayed during the federal government shutdown is pending release starting next week. Risk sentiment has been dented by concerns about lofty stock valuations and Fed policy, but the S&P 500 and Nasdaq Composite stock indexes rebounded on Friday. The greenback