Abstract

BOOK REVIEWS REFERENCES Mosteller and Tukey (1977, p. 259-262) gave a rich, and much different, view ofdependence, as follows: Hoaglin, David C., Mosteller, Frederick, and Tukey, John W. Dqxwle~tce. It is not enough to straighten out association and causation. (1983). Understanding Robust and Exploratory Data Analysis, We must be clearer about that abused word “dependence” and its relatives. New York: John Wiley. When we say “y depends on ;“. sometimes we intend exclusive dependence, McNeil. Donald R. (1977) Inferactive Data Analysis, New York: meaning that, if Y is given. then the value of .i’ follows, usually because the John Wiley. existence of a law is implied. In mathematics if y is the area of a circle and r Mosteller, Frederick, and Rourke, Robert E. K. (1973), Sturdy the radius, then 4‘ = r2 illustrates this exclusive dependence. (This use is found in mathematics courses, and is frequently used in the more exact parts of the Statistics, Reading, MA: Addison-Wesley. physical sciences.) Mosteller, Frederick, and Tukey, John W. (1977) Data Analysis and At other times, “y depends on r” means failure of independence, usually in Regression, Reading, MA: Addison-Wesley. the sense of “other things being equal” as in “the temperature