Answer:
thomas paine published common sense
Explanation:
Interchangeable parts are parts (components) that are, for practical purposes, identical. They are made to specifications that ensure that they are so nearly identical that they will fit into any assembly of the same type. One such part can freely replace another, without any custom fitting (such as filing). This interchangeability allows easy assembly of new devices, and easier repair of existing devices, while minimizing both the time and skill required of the person doing the assembly or repair.
The concept of interchangeability was crucial to the introduction of the assembly line at the beginning of the 20th century, and has become an important element of some modern manufacturing but is missing from other important industries.
The answer for this question could be 4 million because people started to go to schools so they could get jobs and earn money to pay for things they needed back then
Answer:
The law of large numbers tells us that experiments with a large number of observations or participants, tend to have results that are close to the expected values: the statistical mean.
This law is important to understand public opinion, because it can explain why, after surveying a large number of people (remember, this law only applies when a large number of subjects are part of the experiment), the result: the public opinion, is close to the values that were expected at first.
