What is the probability that a person has blue eyes?

Suppose a certain opthalmic trait is associated with eye color. 300 randomly selected indi Show more Suppose a certain opthalmic trait is associated with eye color. 300 randomly selected individuals are studied with results as follows: EYE COLOR TRAIT | Blue | Brown | Other | Total ____________________________________ Yes | 70 | 30 | 20 | 120 ____________________________________ No | 20 | 110 | 50 | 180 ____________________________________ Total | 90 | 140 | 70 | 300 A. What is the probability that a person has blue eyes? B. What would you expect to be the value P(having the trait and blue eyes) if eye color and trait status were independent? C. Which of the following expressions describes the relation- ship between the events A = a person has brown eyes and B = a person has blue eyes? (circle the correct answer) i. independent ii. exhaustive iii. simple iv. mutually exclusive Show less

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