*uncle sam
*home of the brave
*melting pot
*land of the free
*the united states of america
*usa
hope that helps :)
Answer: The correct answer is : The central limit theorem
Explanation: This is a fundamental theorem of probability and statistics. When the sample size is large enough, the distribution of the means follows approximately a normal distribution. The theorem can be applied regardless of the form of population distribution.
Countries trade with each other when, on their own, they do not have the resources, or capacity to satisfy their own needs and wants. By developing and exploiting their domestic scarce resources, countries can produce a surplus, and trade this for the resources they need. You can integrate all of this into your question. Hope this helped.