document.write( "Question 844180: A box contains 15 items, 4 of which are defective and 11 are good. Two items are selected. What is probability that
\n" ); document.write( "the first is good and the second defective? \n" ); document.write( "

Algebra.Com's Answer #508616 by Fombitz(32388) $\"\"$ $\"About$

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Look at the possible two item draws and their probabilities.
\n" ); document.write( "(G,G)= $\"%2811%2F15%29%2811%2F15%29=121%2F225\"$
\n" ); document.write( "(G,D)= $\"%2811%2F15%29%284%2F15%29=44%2F225\"$
\n" ); document.write( "(D,G)= $\"%284%2F15%29%2811%2F15%29=44%2F225\"$
\n" ); document.write( "(D,D)= $\"%284%2F15%29%284%2F15%29=16%2F225\"$
\n" ); document.write( "If you sum all of the probabilities, you will get 1.
\n" ); document.write( "The one you want has a probability of $\"P=44%2F225\"$ \n" ); document.write( "

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