Find the Indicated Probability What Is the Probability That a Randomly Selected Person Received

question 52

Multiple Choice

Find the indicated probability.
-The following table show the results of a clinical trial for an allergy drug. $$\begin{array} { l | c | c | c | c } & \begin{array} { c } \text { Allergy } \\\text { drug }\end{array} & \text { Placebo } & \begin{array} { c } \text { Control } \\\text { (notreatment) }\end{array} & \text { Total } \\\hline \text { Improvement } & 145 & 85 & 41 & 271 \\\text { No improvement } & 55 & 115 & 59 & 229 \\\text { Total } & 200 & 200 & 100 & 500\end{array}$$ What is the probability that a randomly selected person received no treatment or improved? Round your answer to the nearest thousandth when necessary.

• A)0.89
• B)0.66
• C)0.082
• D)0.742

---

Definitions:

American South

A region in the United States characterized by its distinct cultural, historical, and social attributes, often associated with states below the Mason-Dixon Line.

Perceived Insults

Refers to the interpretation or understanding of certain actions, words, or behaviors by an individual as being disrespectful or offensive.

Unique Experiences

Individual encounters or events that are distinct and not shared with others, contributing to one's personal development and perspective.

Family Environment

The social and emotional setting in which a person grows up or lives, which includes family dynamics, relationships, and cultural practices.