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1. Block bootstrap estimation of the distribution of cumulative outdoor degradation.
...uncertainty/variability in the environment. (We assume that the variability in the environment dominates the material or unit-to-unit variability, as is true in some applications.) Such a distribution can be used to, for example, estimate the probability of...
May 1, 2004; Technometrics

2. Assessing the Risk to U.K. Children from Carbendazim Residues in Apple Products
...level. A variability factor (defined as the ratio of the 97.5th percentile to the mean) is used to account for unit-to-unit variability for individual apples.9,10 Default values have been proposed for the variability factor, which are based on measurements...
April 1, 2008; International Journal of Occupational and Environmental Health