We Study Relationships Among Numerical Variables Using

question 15

Multiple Choice

We study relationships among numerical variables using

• A) correlation
• B) covariance
• C) scatterplot charts
• D) all of these options
• E) none of these options

---

Definitions:

Operator Training

The process of teaching operators to run machinery or systems efficiently and safely.

Maintenance

The activities undertaken to keep an asset in working condition or restore it to proper condition.

Number Of Calls

Represents the total amount of telephone calls made or received by a person or organization within a specific period.

Number Of Operators

The total count of individuals or machines operating within a given process or system at a specific time.