Which of the following statements are true? The resample can contain waiting times that are not in the original sample. The resample has either zero, one, or more than one copy of each waiting time. The original sample can contain waiting times that are not in the resample. Each observed waiting time occurs exactly once in the original sample. The resample has exactly the same sample size as the original sample. The histogram of a resample can look somewhat different from the histogram of the original sample.