Organic Substances in Fibers That Absorb Visible Light Are Called

question 7

Multiple Choice

Organic substances in fibers that absorb visible light are called

• A) Dyes
• B) Pigments
• C) both a and b
• D) neither a or b

---

Definitions:

Nonparametric Techniques

Statistical methods that do not assume a specific distribution for the data and are often used for data that does not meet the assumptions necessary for parametric tests.

Population Distribution

The spread of characteristics (e.g., values or categories) within a population.

Statistical Methods

Techniques and procedures used for collecting, analyzing, interpreting, and presenting data.

Wilcoxon Rank Sum Test

A nonparametric statistical test used to compare two independent samples to determine if they come from the same distribution.