The term "trend analysis" refers to the concept of collecting information and attempting to spot a pattern, or trend, in the information. In some fields of study, the term "trend analysis" has more formally-defined meanings. In project management trend analysis is a mathematical technique that uses historical results to predict future outcome. This is achieved by tracking variances in cost and schedule performance. In this context, it is a project management quality control tool. There are several factors that affect trend in time series. The most important single factor responsible for rising trends in series like prices, production, sales etc, has been the ever increasing population.
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