1. Sampling error is 1. a type of sampling technique 2. the difference in observations between the population and the sample 3. an error introduced into a study by the researcher’s bias 4. none of the...

1. Sampling error is 1. a type of sampling technique 2. the difference in observations between the population and the sample 3. an error introduced into a study by the researcher’s bias 4. none of the above

2. In a ______________ sample, all members of the population have an equal chance of being selected.