Cysts After Researching Cysts of a Particular Type, a Doctor

question 175

Essay

Cysts After researching cysts of a particular type, a doctor learns that out of 10,000 such cysts examined, 1,500 are malignant and 8,500 are benign. A diagnostic test is available which is accurate 80% of the time (whether the cyst is malignant or not). The doctor has discovered the same type of cyst in a patient. {Cysts Narrative} In the absence of any test, what is the probability that the cyst is benign?

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Definitions:

Intrinsic Motivation

The drive to engage in an activity for its own sake, deriving pleasure and satisfaction from the activity itself rather than for some external reward.

Extrinsic Motivation

Motivation driven by external rewards such as money, fame, grades, or praise, as opposed to inherent satisfaction.

Fixed

In a context, it refers to something that is securely attached or set in position without any movement; unchangeable.

Growth

A process of increase in size, number, value, or strength.