Figure 2.

Simplified illustration of the principles of resampling techniques as employed by resampling methods with replacement.
This figure illustrates the use of 83 raw data observations obtained from Geffré et al. (24) resampled 1000 times in this case. One thousand copies of each observation are created and thoroughly mixed giving each of them identical possibility of being selected. A multitude of random samples are then taken from the mixture, calculating the 0.025 and 0.975 percentiles for each sample in order to create an estimate of these percentiles in the intended population.