(Requires Appendix)The Sample Average of the OLS Residuals Is

question 21

Multiple Choice

(Requires Appendix) The sample average of the OLS residuals is

• A)some positive number since OLS uses squares.
• B)zero.
• C)unobservable since the population regression function is unknown.
• D)dependent on whether the explanatory variable is mostly positive or negative.

---

Definitions:

LGBT Clients

Refers to serving the unique mental health and therapeutic needs of lesbian, gay, bisexual, transgender, and queer individuals in a culturally sensitive manner.

Relapse Rate

The percentage of individuals who return to addictive behavior after a period of improvement or recovery.

Crack Cocaine

A potent form of cocaine that is smoked, known for its highly addictive properties and rapid, intense high.

Heroin

An opioid drug made from morphine, a natural substance taken from the seed pod of various opium poppy plants, used illicitly for its euphoric effects.