QUICK ANSWER NOW!!3. A researcher wants to evaluate the average income of US students one year after graduating from college.

a. If the researcher had taken 500 samples of 50 students who graduated a year ago from around the US and recorded their mean income, would a distribution of his results be considered a sampling distribution?

b. If the researcher obtained a sample of 500 UT students who graduated a year ago, would a distribution of their income results be considered a sampling distribution?

c. Which distribution would more accurately help you determine the mean income of all US students one year after graduating? Why is it more accurate?

The answer to Option a, It is a survey because it comes from across the United States and has greater population characteristics.
Although In option B, it is the process of the distribution, which is not sampling because that is very UT-oriented.
In option C, It specifies at the point (a), which simply is good because it is such a better population-representative and far less inclined.