document.write( "Question 1119759: On a table in a doctor’s office are five Motor Trend magazines, six Parenting magazines, and three Sports Illustrated magazines. If a patient randomly selects three magazines, determine the probability that
\n" ); document.write( "a. three Motor Trend magazines are selected.
\n" ); document.write( "b. two Parenting magazines and one Sports Illustrated magazine are selected.
\n" ); document.write( "c. no Parenting magazine is selected.
\n" ); document.write( "d. at least one Parenting magazine is selected
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14 magazines
\n" ); document.write( "(5/14)(4/13)(3/12)=0.0275 ANSWER a
\n" ); document.write( "three ways this can happen, PPS PSP SPP
\n" ); document.write( "probability of one of these is (6/14)(5/13)(3/12)--the others will have the same denominator and the same numerator, but the order in the numerator is different, which doesn't matter
\n" ); document.write( "That probability is 0.0412, so the overall probability is three times that or 0.1236 ANSWER b
\n" ); document.write( "No parenting means only of the others are chosen or (8/14)*(7/13)(6/12)=0.1538 ANSWER c
\n" ); document.write( "At least one parenting would be the complement or 0.8462 ANSWER d \n" ); document.write( "

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