document.write( "Question 850837: i have decide to host a party .in which 2 are from my family including me and 5 are my other friend .in total there are 7 persons in party of which 3 are males and 4 are females.
\n" ); document.write( "A)3 persons are selected with replacement.What is the probability that my friends are short listed at least twice?
\n" ); document.write( "b) 4 persons are selected randomly without replacement.What is the probability that two males and females are selected? \n" ); document.write( "

Algebra.Com's Answer #512425 by ewatrrr(24785) $\"\"$ $\"About$

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document.write( "Hi,
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document.write( "Note: shortlisted 2/3 of the time 
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document.write( "'short listed' ...  more family than friends in the group of 3
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document.write( "A.  2C2*5C1 are the 5 ways there are more family than friends:  
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document.write( "P(shortlisted) = 2C2*5C1/7C3 =  5/35 = 1/7
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document.write( "P(shortlisted 2/3 of the time ) =  (2/3)(1/7)  =  2/21 = .0952
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document.write( "b. P =  \n" );
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