Find the Population Standard Deviation for the Following Data Set $\begin{array} { l l l l l } 21 & 12 & 20 & 15 & 18\end{array}$

question 8

Multiple Choice

Find the population standard deviation for the following data set:
$\begin{array} { l l l l l } 21 & 12 & 20 & 15 & 18\end{array}$

• A)3.3
• B)11
• C)13.7
• D)3.7

---

Definitions:

Nursing Intervention

Actions undertaken by a nurse to help a patient address a health challenge, including direct care, counseling, or health education.

Disability

A condition that restricts a person's ability to perform certain tasks or activities due to physical or mental impairments.

Support System

A network of individuals or groups that provides emotional, informational, and practical assistance.

Chronic Illness

A long-term health condition that may not have a cure and requires ongoing management of symptoms.