Which concept describes the distribution where a minority of inputs yields the majority of outcomes?

Which concept describes the distribution where a minority of inputs yields the majority of outcomes?

• A. Brooks' Law
• B. Sidewalk origin
• C. Hofstadter's Law
• D. Pareto Principle

Answer: (D)

The main idea here is that a small set of inputs often drives most of the results. This is captured by the Pareto Principle, the 80/20 rule, which says roughly 80% of effects come from about 20% of causes. It’s a handy way to think about prioritizing effort: identify the vital few inputs that produce the majority of outcomes and focus your energy there. You’ll see this in many areas—sales where a minority of customers bring most revenue, quality where a few defect types dominate issues, or productivity where a small number of tasks yield most of the progress. Other options don’t describe this pattern. One describes how adding people to a late project can make it take longer, another is a general statement about underestimations, and the last isn’t a standard principle used to explain distributions of input to output.

The main idea here is that a small set of inputs often drives most of the results. This is captured by the Pareto Principle, the 80/20 rule, which says roughly 80% of effects come from about 20% of causes. It’s a handy way to think about prioritizing effort: identify the vital few inputs that produce the majority of outcomes and focus your energy there. You’ll see this in many areas—sales where a minority of customers bring most revenue, quality where a few defect types dominate issues, or productivity where a small number of tasks yield most of the progress.

Other options don’t describe this pattern. One describes how adding people to a late project can make it take longer, another is a general statement about underestimations, and the last isn’t a standard principle used to explain distributions of input to output.