Question: You Can Work and Get Your Exercise at the Same Time One in five clerical workers walks about a quarter mile a day just to complete routine functions like faxing, copying and filing, a national survey on office efficiency reports. The survey also shows that the average office worker spends close to 15 percent of the day just walking around the office. Not surprisingly, the survey was commissioned by Canon U.S.A., maker of-you guessed it-office copiers and printers that claim to cut the time and money "spent running from one machine to the next." Discussion We are not given any information that would allow us to evaluate the results of this survey. Further, what does it mean to say that one in five workers walk that far? Do the others walk more or less? Is the figure based on an average of the top 20% (one in five) of a set of numbers, in which case outliers for office delivery personnel and others are likely to distort the mean?