ocr: Figure 4.1 Chart showing three rounds from a Wideband Delphi session Round 4 Round 3 XX XXX Round 2 X X X - X Round1 XX 500 1000 1500 2000 2500 Labor Hours (tasks only) Aftert discussion ofthe initialestimates, alll participants modity their estimates. The moderator collects ther revised overall estimates and plots them on the: same chart, on the Round2"line. These later rounds might lead to a nattrowels distribution of estimates centered around a ligher meanthan the mean of the Roundi 1values.
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