You successfully completed statistics, and the Math Department Chair recruited you to be a tutor. Its day one on the job, and your first pupil is correcting her mistakes on a recent statistics exam. She incorrectly listed the reasons that researchers use random sampling when conducting a survey.

She wants to know why researchers should use a random sample to conduct a survey. Check all that apply.

1. A random sample is likely to avoid bias.
2. In a random sample some members of the population are more likely to be selected than others.
3. Random samples provide consistency and systematically favor one choice over every other choice in each survey question.
4. Random sampling will provide a more representative sample of population.
5. Researchers can use a random sample to draw conclusions about the population.