CAPM Practice: Demonstrate an understanding of common problem-solving tools and techniques

Statistical sampling allows conclusions to be drawn about a population by inspecting a representative subset. It is cost-effective when 100% inspection is impractical or too expensive. When properly designed, samples provide reliable estimates of the population's characteristics.

**Why not B:** When properly designed with appropriate sample sizes and random selection, statistical sampling minimizes bias rather than introducing it. Sampling is a well-established quality management technique specifically designed to provide reliable population estimates cost-effectively.

**Why not C:** Inspecting every item (100% inspection) is often impractical, prohibitively expensive, or even impossible for large populations. Statistical sampling provides valid conclusions about the entire population by examining a properly selected representative subset, without requiring complete inspection.

**Why not D:** Statistical sampling is applicable across many industries and project types, not just manufacturing. It is used in software testing, service quality audits, construction inspections, and any context where evaluating every item is impractical but population-level conclusions are needed.