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.
The president best known for his golf addiction was Dwight Eisenhower, and many are under the impression that he was the first Chief Executive to play. But he just took it to another level, amassing approximately 800 rounds in his eight years in office. The first president to play was William Howard Taft. And only three presidents since -- Herbert Hoover, Harry Truman, and Jimmy Carter -- didn't. Truman, however, did win over golfers with this spirited defense of Eisenhower: To criticize the president because he plays a game of golf is unfair and picayunish.