Answer:
The correct answers to this question are: 1.- bigger polls should have more relevance because they consider bigger concentrations of the representative population of the study. 2.- Recent polls should have more weight or importance than older ones because they simply just manage a more recent perception of the phenomenon of study. The population they were interested in was the middle-class American voter. The population keeps changing over time because Trump has made an impact on the group he was looking for and hasn't had the positive impact he wished on the population outside his target. After all, he is not doing a good job at their perspective.
Explanation:
First of all the size of the polls should be valued in size because that way the researcher can obtain a better source of data. Second, recent polls about the topic will provide a better source of information because it will show better the reality of the event. Third, the population trump targeted was the middle class American and thanks to doing so he won the elections. Also, it was the determining factor for his victory and that's the reason they keep being studied because they still represent a very good point of support for him. Also because his contender will have to persuade them to win over him.