document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=486566>Question 486566</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Statistics have never been one of my strong suits and for some reason I am just drawing a blank on these. I am an adult learner right now and am having a hard time working on things from 20 years ago. Can you please show me how you work this out too so I can learn from it???\r<BR>\n" );
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document.write( "1. The Florida Tourist Commission estimates that a person visiting Florida will visit Disney World, Busch Gardens, or both with probabilities 0.5, 0.3, and 0.2, respectively. Find the probability that a person visiting Florida will visit Busch Gardens, given that the person did visit Disney World .\r<BR>\n" );
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document.write( "2. A word contains 20 marbles--5 red, 9 blue, 3 green, and 3 yellow \r<BR>\n" );
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document.write( "If the 20 marbles used to spell the word are placed in a glass jar <BR>\n" );
document.write( "and two marbles are chosen at random in succession and without replacement, what is the probability (as a <BR>\n" );
document.write( "reduced fraction) of choosing a marble other than red each time? \r<BR>\n" );
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document.write( "Thank you!\r<BR>\n" );
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document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #332713 by </B><A HREF=/tutors/aboutme.mpl?userid=chessace><B>chessace(471)</B></A><img src=\"/images/stars/stars-10.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=chessace><IMG SRC=http://www.algebra.com/images/aboutme-small.gif BORDER=0 alt=\"About Me\" VALIGN=MIDDLE></A>&nbsp;<IMG SRC=http://www.algebra.com/cgi-bin/show-face.mpl?user=chessace><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=332713\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> 1. P(B given A) = P(A and B)/P(A)<BR>\n" );
document.write( "P(BG given DW) = 0.2 / 0.5 = 0.4<BR>\n" );
document.write( "2. 5 are red, 15 not so much.<BR>\n" );
document.write( "First is not red: 15/20 = 3/4<BR>\n" );
document.write( "And (implies Times) second is not red = 14/19<BR>\n" );
document.write( "Answer = (3/4) * (14/19) = (3*7)/(2*19) = 21/38.<BR>\n" );
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