document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=947461>Question 947461</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Among 46-51-year-olds, 28% say they have written an editorial letter while under the influence of peer pressure.  Suppose six 46-51-year-olds are selected at random.  \r<BR>\n" );
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document.write( "(a) The probability that at least one of the six randomly selected adults has not written an editorial letter while under the influence of peer pressure.\r<BR>\n" );
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document.write( "Correct answer = 1 - (28)^6 = 0.999518\r<BR>\n" );
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document.write( "(b) The probability that at least one of the six randomly selected adults has written an editorial letter while under the influence of peer pressure.  \r<BR>\n" );
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document.write( "This is the example that I am having issues with.  The answer given is = 0.8607.  No matter how I've done the math, I cannot come to 0.8607.  Details would be appreciated. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #578275 by </B><A HREF=/tutors/aboutme.mpl?userid=MathLover1><B>MathLover1(20850)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=MathLover1><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=MathLover1><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=578275\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> if <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=28 ALIGN=MIDDLE  ALT=\"28\"   DISABLED_style= \"max-width:90%; height:auto;\" >% or <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=0.28 ALIGN=MIDDLE  ALT=\"0.28\"   DISABLED_style= \"max-width:90%; height:auto;\" >  say no, to compute the probability that at least one of six has not written an editorial letter while under the influence of peer pressure is <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%280.28%29%280.28%29%280.28%29%280.28%29%280.28%29%280.28%29=%280.28%29%5E6 ALIGN=MIDDLE  ALT=\"%280.28%29%280.28%29%280.28%29%280.28%29%280.28%29%280.28%29=%280.28%29%5E6\"   DISABLED_style= \"max-width:90%; height:auto;\" > and subtract it from <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=1 ALIGN=MIDDLE  ALT=\"1\"   DISABLED_style= \"max-width:90%; height:auto;\" >. This is the same as at least <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=1 ALIGN=MIDDLE  ALT=\"1\"   DISABLED_style= \"max-width:90%; height:auto;\" > has not written an editorial letter while under the influence of peer<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=1-%280.28%29%5E6+=1-0.000481890304+=0.999518109696=0.999518 ALIGN=MIDDLE  ALT=\"1-%280.28%29%5E6+=1-0.000481890304+=0.999518109696=0.999518\"   DISABLED_style= \"max-width:90%; height:auto;\" > has not written an editorial letter while under the influence of peer pressure\r<BR>\n" );
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document.write( "(b) The probability that at least one of the six randomly selected adults has written an editorial letter while under the influence of peer pressure.\r<BR>\n" );
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document.write( " if <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=0.28 ALIGN=MIDDLE  ALT=\"0.28\"   DISABLED_style= \"max-width:90%; height:auto;\" >  has not written an editorial letter while under the influence of peer pressure, then <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=72 ALIGN=MIDDLE  ALT=\"72\"   DISABLED_style= \"max-width:90%; height:auto;\" >% or <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=0.72 ALIGN=MIDDLE  ALT=\"0.72\"   DISABLED_style= \"max-width:90%; height:auto;\" > has written an editorial letter while under the influence of peer pressure\r<BR>\n" );
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document.write( " the probability that at least one has written an editorial letter while under the influence of peer pressure is <BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=1-0.72%5E6=1-0.139314069504=0.860685930496=0.8607 ALIGN=MIDDLE  ALT=\"1-0.72%5E6=1-0.139314069504=0.860685930496=0.8607\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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