For instance, if you take an average of a 0,1 variable, the result is the proportion of 1s in the distribution. To illustrate dummy variables, consider the simple regression model for a posttest-only two-group randomized experiment.
President Barack Obama has already played nearly eight times as many rounds of golf during his presidency as President George W. Bush did throughout his eight years in office, according to noted presidential chronicler of all things numerical, CBS Newsâ Mark Knoller.
President Barack Obama golfs at Farm Neck Golf Club in Oak Bluffs, Mass., on the island of Martha's Vineyard, on Aug. 9, 2014. Even a year later, our fact-check on which president took more vacation -- George W. Bush or Barack Obama -- remains one of our most popular fact-checks with readers.