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.

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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