RIVERSIDE (CNS) - Expansion in multiple sectors of the regional economy pushed Riverside County's unemployment rate down a notch last month, figures released today show.The region's jobless rate in November, based on preliminary estimates, was 3.8%, compared to 3.9% in October, according to the California Employment Development Department.The rate was three-tenths of a percentage point lower than the year-ago level, when countywide unemployment stood at 4.1%, figures showed.Roughly 42,300 residents were out of work in November, and 1,070,300 were employed, according to the EDD.Coachella had the highest unemployment rate countywide at 11%, followed by the unincorporated community of Cabazon at 8.6% and the unincorporated community of  Highgrove at 6.6%.The combined une
