Returns for the Alcoff Company Over the Last 3 Years $$\begin{array} { r r } \frac { \text { Year } } { 2010 } & \frac { \text { Return} } { 21.00 \% } \\2009 & - 12.50 \% \\2008 & 25.00 \%\end{array}$$

question 126

Multiple Choice

Returns for the Alcoff Company over the last 3 years are shown below.What's the standard deviation of the firm's returns? (Hint: This is a sample,not a complete population,so the sample standard deviation formula should be used.) $$\begin{array} { r r } \frac { \text { Year } } { 2010 } & \frac { \text { Return} } { 21.00 \% } \\2009 & - 12.50 \% \\2008 & 25.00 \%\end{array}$$

• A) 20.08%
• B) 20.59%
• C) 21.11%
• D) 21.64%
• E) 22.18%

---

Definitions:

Biological Conditions

States or processes of living organisms that are influenced by genetic, physiological, and biochemical factors.

Controls

In scientific experiments, these are conditions or groups that do not receive the experimental treatment and are used as a benchmark to measure the effects of such treatments.

Nutrients

Substances obtained from food that are critical for the maintenance of health and for growth and development in both humans and animals.

Physiological Stages

The phases of physical and biological changes that an organism undergoes during its life cycle.