Suppose That $B _ { 1 }$ And $B _ { 2 }$

question 49

Multiple Choice

Suppose that $B _ { 1 }$ and $B _ { 2 }$ are mutually exclusive and complementary events, such that $P \left( B _ { 1 } \right) = .6$ and $P \left( B _ { 2 } \right) = .4$ Consider another event $A$ such that $P \left( A \mid B _ { 1 } \right) = .2$ and $P \left( A \mid B _ { 2 } \right) = .5$ . Find $P \left( B _ { 1 } \mid A \right)$ .

• A) .375
• B) .625
• C) .240
• D) .800

---

Definitions:

Permanent Addiction

A chronic, relapsing disorder characterized by compulsive drug seeking, continued use despite harmful consequences, and long-lasting changes in the brain.

Psychoactive Drugs

Substances that, when taken, alter a person's perceptions, mood, or consciousness.

Euphoria

An emotion or condition of extreme joy and exhilaration.

Health

The state of complete physical, mental, and social well-being, not merely the absence of disease or infirmity, requiring access to healthcare, nutrition, and lifestyle choices that support well-being.