Final answer:
In statistics, random samples are preferred because they represent the population as a whole and can support conclusions about the population. Regardless of the sample size, if it is randomly selected, it can provide accurate estimates. For instance, a Gallup Poll, if conducted as a nationwide random sampling, should be able to provide an accurate estimate of public opinion.
Step-by-step explanation:
In statistics, random samples are preferred because they represent the population as a whole. A random sample is a subset of a larger population in which every member of the population has an equal chance of being selected. Regardless of the size of the sample, if it is randomly selected, it can strongly support conclusions about the population. For example, a Gallup Poll, if conducted as a nationwide random sampling, should provide an accurate estimate of public opinion whether it contacts 2,000 or 10,000 people.