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Table Of Contents
CompTIA Data+: DAO-001 Certification Guide
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Trend analysis, sometimes called time series analysis and projections, does exactly what it sounds like, analyze trends. Again, this topic is very broad because it is used in so many fields in so many ways. The general idea is that you are looking at a variable over time to see whether there are any patterns or whether you can predict what will happen in the immediate future. The further into the future you go, the less accurate the predictions become.
For example, you know your own weight in pounds. It is a decently safe bet to say that in 1 second, your weight may go up or down a pound because of measurement errors, but it probably won’t change. What about in a week? You could probably say your weight won’t change, but it could theoretically go up or down 5 pounds. A month? Give or take 15 pounds. A year? Give or take 50 pounds. A decade? Give or take 100 pounds. I think you see where this is going. The further into the future you get, the more...