document.write( "Question 951583: BINOMIAL DISTRIBUTION \r
\n" ); document.write( "\n" ); document.write( "Last Question.A city law enforcement official has started that 20% of the items sold by pawn shops within the city have been stolen. ralph has just purchase 4 items from one of the city's pawn shops. assuming that the official is correct and fo the X= the number of ralph purchases that have been stolen, determine the following \r
\n" ); document.write( "\n" ); document.write( "a) E(x) \r
\n" ); document.write( "\n" ); document.write( "b) P(X=0) \r
\n" ); document.write( "\n" ); document.write( "c) P(x=2)\r
\n" ); document.write( "\n" ); document.write( "d) formula and solution\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "Thank you
\n" ); document.write( "

Algebra.Com's Answer #581130 by stanbon(75887)\"\" \"About 
You can put this solution on YOUR website!
A city law enforcement official has stated that 20% of the items sold by pawn shops within the city have been stolen. ralph has just purchase 4 items from one of the city's pawn shops. assuming that the official is correct and fo the X= the number of ralph purchases that have been stolen, determine the following
\n" ); document.write( "a) E(x) = np = 4*0.2 = 0.8
\n" ); document.write( "-----------------------
\n" ); document.write( "b) P(X=0) = 0.8^4 = 0.4096
\n" ); document.write( "-----------------------
\n" ); document.write( "c) P(x=2) = 4C2(0.2)^2*(0.8)^2 = binompdf(4,0.02,2) = 0.0023
\n" ); document.write( "------------------------
\n" ); document.write( "d) formula and solution ?????
\n" ); document.write( "==========
\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
\n" ); document.write( "==========
\n" ); document.write( "
\n" ); document.write( "
\n" );