document.write( "Question 448846: on a 20 question multiple-choice test with four choices for each question, how many questions are likely to be answered correctly by simply guessing each answer? \n" ); document.write( "

Algebra.Com's Answer #308795 by stanbon(75887) $\"\"$ $\"About$

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on a 20 question multiple-choice test with four choices for each question, how many questions are likely to be answered correctly by simply guessing each answer?
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\n" ); document.write( "Expected value = np = 20(1/2) = 10
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\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H. \n" ); document.write( "

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