Answer: In October, the U.S. Senate ratified the purchase, and in December 1803 France transferred authority over the region to the United States.
The year gap of the population of 4 billion people was from 1974 - 1986. Exactly 12 years of 4 billion people.
You have noticed that as the temperature drops outside, more students wear sweaters and heavy coats. your observation is most similar to: correlational research.
In correlational research, two variables are observed in order to determine whether there is a statistically significant link between them. Finding variables that are related to the extent that a change in one causes a change in the other is the goal of correlational research.
Contrary to experimental research, which solely depends on scientific technique and hypotheses, this kind of study is descriptive. Correlational research, for instance, may show the statistical link between high income earners and relocation; that is, the likelihood that someone will relocate or not increases with money.
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