document.write( "Question 932148: (a) 70% students are prepared and the others are not prepared for an examination.
\n" ); document.write( "Those who are prepared have 90% chance of success, while those who are not
\n" ); document.write( "prepared will have a probability of success of 20% in the examination.
\n" ); document.write( "(i) What is the probability that a randomly selected student
\n" ); document.write( "(1) is not prepared for the examination and fails.
\n" ); document.write( "(2) succeeds in the examination.
\n" ); document.write( "(3) who has succeeded was not prepared for the examination. \n" ); document.write( "

Algebra.Com's Answer #565998 by ewatrrr(24785) $\"\"$ $\"About$

You can put this solution on YOUR website!

 
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document.write( "Hi
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document.write( "p   Success
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document.write( ".70   .90
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document.write( ".30   .20
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document.write( ".......
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document.write( "1) P = .30(.80)
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document.write( "2) P = .70(.90) + .30(.20)
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document.write( "3) P =  .30(.20) \n" );
document.write( "

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