Diagnostic Tests of Medical Conditions Have Several Results A)086
B)0

question 22

Multiple Choice

Diagnostic tests of medical conditions have several results. The rest result can be positive or negative. A positive test (+) indicates the patient has the condition. A negative test (-) indicates the patient does not have the condition. Remember, a positive test does not prove the patient has the condition. Additional medical work may be required. Consider a random sample of 122 patients, some of whom have a medical condition and some of whom do not. Results of a new diagnostic test for the condition are shown. Assume that the sample is representative of the entire population. For a person selected at random, find P(getting test result - or condition present) . Round your answer to the nearest hundredth.
$$\begin{array} { l c c r } & \text { Condition Present } & \text { Condition Absent } & \text { Row Total } \\\text { Test Result } + & 97 & 25 & 122 \\\text { Test Result } - & 25 & 37 & 62 \\\text { Column Total } & 122 & 62 & 184\end{array}$$

• A)0.86
• B)0.40
• C)0.14
• D)0.20
• E)none of these choices

---

Definitions:

Male-male Sexual Contact

Sexual activities that occur between two males, often discussed in the context of sexual health and transmission of diseases.

Heterosexual Sex

Sexual activities involving individuals of the opposite sex, often resulting in reproduction.

HIV Infection

A virus that attacks the immune system, specifically the CD4 cells, leading to a gradual deterioration in immune function.

Dying Role

The social and psychological processes individuals experience as they approach the end of life.