Regression line (actual relationship) —_— ae oe Y=X line (theoretical relationship) / , 7“ + } 14 / + 28 ef , 42 56 ESTIMATED PERCENT BRUSH, FIRST SURVEY FIGURE B-20-13 COMPARISON OF PERCENT BRUSH ESTIMATES BY DIFFERENT IMP OPERATORS ON ISLAND BELLE a 0 + 0 + ESTIMATED PERCENT BRUSH, RESURVEY L1-03-9 + Plotted observations