The number "0.002" is a decimal that represents two thousandths. It can also be expressed as a fraction, specifically 2/1000, which simplifies to 1/500. This value is often used in measurements, such as in science or finance, to indicate a small quantity. In practical terms, "0.002" can be seen in various contexts, like measuring distances in millimeters or representing percentages. For example, "0.002" can also be interpreted as 0.2%, which is a way to express a small part of a whole, useful in statistics and data analysis.