In a Set of Survey Results, the Mean Is 15

question 100

Multiple Choice

In a set of survey results, the mean is 15 and the standard deviation is 3. With these numbers we know that 99% of the scores are between ________.

• A) 6 and 24
• B) 12 and 18
• C) 0 and 30
• D) 9 and 21

---

Definitions:

Interstitial Fluid

Fluid that surrounds the body’s cells; consists of dissolved substances that leave the blood capillaries by filtration and diffusion.

Metabolism

The set of life-sustaining chemical reactions in organisms to convert food into energy, and build or maintain their cells.

First Messenger

Chemical signal, such as a peptide hormone, that binds to a plasma membrane receptor protein and alters the metabolism of a cell because a second messenger is activated.

Second Messenger

Chemical signal, such as cyclic AMP, that causes the cell to respond to the first messenger—a hormone bound to a plasma membrane receptor protein.