Labels:crescent | crt screen | earth | isosceles triangle | monitor | road | sky | true anomaly OCR: 70 60 50 40 50 60 Forecast Bin Fredericksburg A-Index All Forecasters Figure 1I-19 Conditional quantile plot fornext-day. Fred ericksburg A-Ind ex forecasts, 1 January-31 December 1993. The lines correspond the following quantiles (top bottom): 0.90th, 0.75th (upper quartile). 0.50th (median). 0.25th (lower quartile), and 0.10th. The 45 diagonal indicates perfect correspond ence forecasts and hserva tians The spread in the quantiles related the accuracy the forecasts and the deviation of the median from the diagonal is related to the overall bias Fredericksbur thserations mediar iagonal
