The following data represent the yield on 90 consecutive batches of ceramic substrate to which a metal coating has been applied by a vapor-deposition process. Construct a stemand-

leaf display for these data.

94.1 86.1 95.3 84.9 88.8 84.6 94.4 84.1 93.2 90.4 94.1 78.3 86.4 83.6 96.1 83.7 90.6 89.1 97.8 89.6 85.1 85.4 98.0 82.9 91.4 87.3 93.1 90.3 84.0 89.7 85.4 87.3 88.2 84.1 86.4 93.1 93.7 87.6 86.6 86.4 86.1 90.1 87.6 94.6 87.7 85.1 91.7 84.5 95.1 95.2 94.1 96.3 90.6 89.6 87.5 90.0 86.1 92.1 94.7 89.4 90.0 84.2 92.4 94.3 96.4 91.1 88.6 90.1 85.1 87.3 93.2 88.2 92.4 84.1 94.3 90.5 86.6 86.7 86.4 90.6 82.6 97.3 95.6 91.2 83.0 85.0 89.1 83.1 96.8 88.3