MSA and Paradigm Sample, in partnership with Convenience Store Decisions, examine the market basket of 18-34-year-old convenience store shoppers. By Trish Temmerman, Contributing Editor. Numerous reports are being written about connecting to and interacting with the Millennial (18-34 year-old) generation. These Millennials, numbering 71 million-plus according to the 2010 U.S. Census, are a key shopper…