document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=62829>Question 62829</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A sample of 4 different calculators is randomly selected from a group containing 16 that are defective and 30 that have no defects. What is the probability that at least one of the 4 calculators in the sample is defective?  </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #43650 by </B><A HREF=/tutors/aboutme.mpl?userid=303795><B>303795(602)</B></A><img src=\"/images/stars/stars-11.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=303795><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=43650\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> The probability of one calculator having no defects is 30/46. When a second is chosen the probability of having no defects is 29/45. The probability of no defects in the third is 28/44 and in the fourth is 27/43.\r<BR>\n" );
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document.write( "The probability of no defects in any of the calculators is found by multiplying the individual probabilities together.<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%2830%2F46%29%2A%2829%2F45%29%2A%2828%2F44%29%2A%2827%2F43%29=0.168 ALIGN=MIDDLE  ALT=\"%2830%2F46%29%2A%2829%2F45%29%2A%2828%2F44%29%2A%2827%2F43%29=0.168\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "The probability of all calculators having no defects is 16.8%. The probability of at least one defect is the complement of that probability.  <BR>\n" );
document.write( "ie an 83.2% probability of at least one defect. </SPAN>\n" );
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