1. Random samples from the same population will vary from sample to sample.
2. as the sample size increases, the sample distribution more closely resembles the population distribution.
3. vallues of a sample statistic of different random samples of the same size from the same population will be the same
4. if a random sample is chosen from a population with a large cluster of points at the maixmum, the sample is likely to have at least one element neat the maximum
