In Simple Linear Regression, the Coefficient of Correlation R and the Least

question 136

Multiple Choice

In simple linear regression, the coefficient of correlation r and the least squares estimate b ₁ of the population slope b ₁:

• A)must be equal.
• B)must have the same sign.
• C)are not related.
• D)None of these choices.

---

Definitions:

On/off Control

A basic form of control system that operates by simply turning a process or device on or off in response to conditions.

On/off Control

A straightforward control technique which switches a system or device between its operational and non-operational states.

Analog Control

A method of controlling systems using continuous signals rather than digital or discrete signals.

Final Control Element

The component in a control system that directly regulates the flow of energy or material in the process, such as a valve or actuator.