Herndon for-profit education company Strayer Inc. (NASDAQ: STRA) officially completed its $1.9 billion merger with online education giant Capella Education Co. Now, say hello to Strategic Education Inc. While both Strayer and Capella will continue to operate as separate, accredited institutions, their new corporate parent now says it can use its size and reach to drive down costs and offer better opportunities for both sets of students. The two companies struck a deal last October for a "merger...