If you are taking about the U.S., I can help.
Land- Settlers moved west because this was their chance to get their land, it is also why immigrants came this way, to own land here, because they would never be able to from where they came from.
Gold- Gold motivated a lot of people in later on years, because there was a gold rush and everyone wanted to make a fortune.
Agriculture is the way you make money through farming and ranching
Answer:
Meta-analysis
Explanation:
Meta-analysis is a survey in which the result of the studies are included in the review are statistically similar and combined and analyzed if the study is the same. It is a set of technologies that are used with several the research report to make a single and more precise estimate of the efforts of a study. The main aim of the meta-analysis is to increase the statistical power to deal with the controversy with when the subject study disagrees, to improve estimate size of effects and to try to answer the new question that is not posted previously in the study. But there should be a valid reason for combined the studies. there are several advantages of meta-analysis:
It allows investigators to pool data from many small trials and allow themselves for the secure conclusion.
