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The shares of the U.S. automobile market held in 1990 by General Motors, Japanese manufacturers, Ford, Chrysler, and other manufacturers were, respectively, 37%, 27%, 22%,
The shares of the U.S. automobile market held in 1990 by General Motors, Japanese manufacturers, Ford, Chrysler, and other manufacturers were, respectively, 37%, 27%, 22%, 8%, and 6%. Suppose that a new survey of 1,000 new-car buyers shows the following purchase frequencies: