document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=867207>Question 867207</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Q4 (a) Statistics show that 3% of products come off the production line <BR>\n" );
document.write( " unsuitable. If two products are examined what is the probability that <BR>\n" );
document.write( " <BR>\n" );
document.write( " (i) both are unsuitable, <BR>\n" );
document.write( " (ii) only one is unsuitable <BR>\n" );
document.write( " (iii) neither is unsuitable. \r<BR>\n" );
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document.write( " (b) A mildew remover is tried out on various mildew patches. It is found <BR>\n" );
document.write( " that 40% of mildew is removed on the &#64257;rst application, but the remaining <BR>\n" );
document.write( " patches are resistance so that the proportion removed in any subsequent <BR>\n" );
document.write( " application is only one half that of the preceding application. Find the <BR>\n" );
document.write( " probability that a mildew patch will survive 3 applications. \r<BR>\n" );
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document.write( " Q5. The number of butterflies appearing in a garden follows a Poisson distribution <BR>\n" );
document.write( " with a mean of 10 butterflies per hour. Find the probability of there being <BR>\n" );
document.write( " (a) exactly 5 butterflies in a 30 minute interval, <BR>\n" );
document.write( " (b) at most 3 butterflies in a 10 minute interval, <BR>\n" );
document.write( " (c) more than 4 butterflies in a 15 minute interval, <BR>\n" );
document.write( " (d) exactly 1 butterfly in each of three consecutive 5 minute intervals. \r<BR>\n" );
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document.write( "really confused on these questions, help would be nice maybe a solution to how I go about working them out, thankyou </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #522919 by </B><A HREF=/tutors/aboutme.mpl?userid=edjones><B>edjones(8007)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=edjones><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=edjones><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=522919\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> a)<BR>\n" );
document.write( "u=.03, s=.97<BR>\n" );
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document.write( "i).03^2=.0009<BR>\n" );
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document.write( "iii).97^2=.9409<BR>\n" );
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document.write( "ii)1-(.9409+.0009)=.0582<BR>\n" );
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document.write( "Ed </SPAN>\n" );
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