A student takes an 18 question multiple-choice exam, with four choices per question. Suppose one of the choices in obviously incorrect, and the student makes an “educated” guess of the remaining choices, then the expected number of the correct answer is

A student takes an 18 question multiple-choice exam, with four choices

1.	A student takes an 18 question multiple-choice exam, with four choices per question. Suppose one of the choices in obviously incorrect, and the student makes an “educated” guess of the remaining choices, then the expected number of the correct answer is
A.	9
B.	10
C.	8
D.	6
Answer» E.

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A student takes an 18 question multiple-choice exam, with four choices per question. Suppose one of the choices in obviously incorrect, and the student makes an “educated” guess of the remaining choices, then the expected number of the correct answer is

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