12. The accompanying specific gravity values for various wood types used in construction appeared in the article “Bolted Connection Design Values Based on European Yield Model” (J. of Structural Engr., 1993: 2169–2186):

.31 .35 .36 .36 .37 .38 .40 .40 .40

.41 .41 .42 .42 .42 .42 .42 .43 .44

.45 .46 .46 .47 .48 .48 .48 .51 .54

.54 .55 .58 .62 .66 .66 .67 .68 .75 Construct a stem-and-leaf display using repeated stems (see the previous exercise), and comment on any interesting features of the display.