What Is the Cheapest and Easiest Means to Prevent the Spread

question 22

Multiple Choice

What is the cheapest and easiest means to prevent the spread of disease?

• A)Vigorous hand washing
• B)Pasteurizing milk
• C)Filtering air in tuberculosis rooms
• D)Exposing operating rooms to ultraviolet light

---

Definitions:

Standard Deviation

A measure of the dispersion or variability in a set of data or probability distribution.

Returns

The gains or losses from an investment over a specific period, usually expressed as a percentage.

Years

Units of time equal to 365 days (or 366 days in leap years), used as a basic measure of time for planning and agreements.

Risk Premium

The additional return expected for holding a risky investment over a risk-free one.