3.106 The following data, reproduced from Exercise 2.28 of Chapter 2, give the market values(in billions of dollars)of 30 U.S. companies as of March5 , 1993.
12.2 20.0 17.9 11.7 5.9 2.8 5.1 13.6 4.3 9.6
3.1 24.1 27.6 13.1 11.2 31.5 9.7 26.5 18.7 23.1
16.2 5.3 33.1 19.1 36.5 18.3 3.9 24.3 5.6 7.8
Make a box-and-whisker plot. Comment on the skewness of these data.