document.write( "Question 352205: 1. An urn contains 15 marbles – 8 blue, 5 red, and 2 white. If 2 marbles are chosen without replacement, find the probability that the first marble is blue and the second is white.\r
\n" ); document.write( "\n" ); document.write( "2. A quick quiz consists of a true/false question followed by a multiple-choice question with four possible answers (a,b,c,d). An unprepared student makes random guesses for both answers. What is the probability that s/he gets both answers correct?\r
\n" ); document.write( "\n" ); document.write( "
\n" ); document.write( "

Algebra.Com's Answer #251763 by Fombitz(32388)\"\" \"About 
You can put this solution on YOUR website!

\n" ); document.write( "1.\"P%28B%29=8%2F15\"
\n" ); document.write( "\"P%28W%29=2%2F14=1%2F7\"
\n" ); document.write( "\"P=P%28B%29%2AP%28W%29=%288%2F15%29%281%2F7%29=8%2F105\"
\n" ); document.write( ".
\n" ); document.write( ".
\n" ); document.write( ".
\n" ); document.write( "2. First question correct:\"P=1%2F4\"
\n" ); document.write( "Second question correct:\"P=1%2F4\"
\n" ); document.write( "Two questions correct\"P=%281%2F4%29%281%2F4%29=1%2F16\"
\n" ); document.write( "
\n" );