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Figure 13-12
Absentee Data |
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figures to the average also requires row processing, as does printing the table. We can calculate the percentage differences while we print the table. |
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To compile the summary figures for the week, we must take the number of people absent on each day, divided by the total number of people absent during the entire week. A bar chart showing this information might look as follows, with each asterisk representing 10 percent: |
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Monday Tuesday Wednesday Thursday Friday
100%
90%
80%
70%
60%
50%
40% *
30% *
20% * * *
10% * * * * * |
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This chart has the following interpretation: 40 percent of the total absences were on Monday, 20 percent were on Tuesday, and so on. |
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We can represent this chart as a two-dimensional array with ten rows and five columns. The rows represent the percentages to the nearest 10 percent. |
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