Uncertainty Assessment of Hydrological Frequency Analysis Using Bootstrap Method
Figure 4
Normal probability plot of estimations of the design value with nonexceedance probabilities 99.9%, 99%, 98%, and 95%: the symbol “+” is normal probability plot reflecting the relationship of the estimation of design value and the related normal quantile; the straight line is the fitted line of the normal probability plots; from Figure 4, it can be seen that plots uniformly distribute in the vicinity of the straight line, which means that the sampling distribution of design value can be approximated by a normal probability distribution.
