The relationship between the number of people working on a project and productivity is not linear. In a linear relation, an increase in the independent variable leads to an increase in the dependent variable.
More people working on a project does not necessarily equate to more productivity. Productivity is dependent on the level of devotion of the team members, their individual skill sets and team spirit, as well as the nature of the project involved. Some projects may thrive more on a small team of highly skilled people, while some projects may require a large team of people to be successful.
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