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.
âI know what itâs like to be in the bubble,â added Bush, who, at times during his own presidency, was judged for playing the sport. Obama, who has played 146 rounds of golf according to CBS News, has been chastised several times by fellow lawmakers for how often he plays.