A Data Set Contains the Observations 1, 6, 4, 5 $\sum x ^ { 2 } - \frac { \left( \sum x \right) ^ { 2 } } { 5 }$

question 88

Multiple Choice

A data set contains the observations 1, 6, 4, 5, 7. Find $\sum x ^ { 2 } - \frac { \left( \sum x \right) ^ { 2 } } { 5 }$

• A) 21.2
• B) 423.2
• C) 101.6
• D) 232.8

---

Definitions:

Retirement Age

The age at which a person is eligible to leave their job or profession and begin to receive pension benefits.

Pension Eligibility

The status of being qualified or entitled to receive pension benefits, often determined by factors such as age, years of service, and contributions to a pension plan.

Financial Circumstances

The condition of an individual or entity's financial assets, liabilities, income, and expenses.

Bone Health

A state of physical well-being where bones are strong, dense, and able to support the body effectively.