document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=895841>Question 895841</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A box contains 25 transistors, of which 4 are known to be bad. A transistor is selected<BR>\n" );
document.write( "at random and tested.<BR>\n" );
document.write( "a) What is the probability that it is bad?<BR>\n" );
document.write( "b) If the first transistor tests bad what is the probability that a second transistor selected<BR>\n" );
document.write( "at random will also be bad?<BR>\n" );
document.write( "c) If the first transistor tested is good, what is the probability that the second transistor<BR>\n" );
document.write( "selected at random will be bad? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #543143 by </B><A HREF=/tutors/aboutme.mpl?userid=stanbon><B>stanbon(75887)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=stanbon><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/images/nopicture.jpg><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=543143\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> A box contains 25 transistors, of which 4 are known to be bad. A transistor is selected at random and tested.<BR>\n" );
document.write( " a) What is the probability that it is bad? 4/25<BR>\n" );
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document.write( " b) If the first transistor tests bad what is the probability that a second transistor selected  at random will also be bad? 3/24 = 1/8<BR>\n" );
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document.write( " c) If the first transistor tested is good, what is the probability that the second transistor selected at random will be bad? 4/24<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H.<BR>\n" );
document.write( "=====================  </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );