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# A student must choose one of the subjects, art, geology, or

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SVP
Joined: 16 Oct 2003
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Kudos [?]: 48 [0], given: 0

A student must choose one of the subjects, art, geology, or [#permalink]  04 Nov 2003, 12:38
A student must choose one of the subjects, art, geology, or psychology, as an elective. She is equally likely to choose art or psychology and twice as likely to choose geology. What are the respective probabilities that she chooses art, geology, and psychology?
Director
Joined: 28 Oct 2003
Posts: 503
Location: 55405
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Kudos [?]: 8 [0], given: 0

.25, .5, and .25

You can assign a value to art, say, 1.
You should assign the same value to psychology (equal value-- equally likely.
Assign twice that value to geology(twice as likely.)

This is a pretty easy question, Bhai...
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