Answer:
In statistics, correlation is the general direction and stregth of the collectiveness of the points (general trend) relative to another output of sets.
Causation is an effect caused by an action, correlation doesnt always equal causation.
Answer:
In 1862, Congress passed the Pacific Railway Act, which authorized the construction of a transcontinental railroad. Four of the five transcontinental railroads were built with assistance from the federal government through land grants.
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The development of the automotive industry has opened many jobs worldwide, including in the USA.
The automotive industry has a vast production chain, involving the plastics, steel, and car components industries. In this sense, besides the direct jobs, there is a great indirect employability.
In this context, the popularization of automobiles has increased the contingent of workers in related industries, as described in the third alternative (C).
