document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=863412>Question 863412</A>: <I><SPAN STYLE=\"word-break: break-all;\"> <BR>\n" );
document.write( "I have decided to hold a barbeque on June 21. If the probability that it will rain that day is 0.28 and the probability that the temperature will be less than 15 degrees is 0.13 and I have decided that I will not have the barbeque if it either rains or is colder than 15 degrees, what is the probaility that the barbeque will go ahead? I also know that in June the probability of the temperature being less than 15 degrees and it also raining is 0.13. Give your answer to 2 decimal places<BR>\n" );
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document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #520410 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=520410\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> I have decided to hold a barbeque on June 21. If the probability that it will rain that day is 0.28 and the probability that the temperature will be less than 15 degrees is 0.13 and I have decided that I will not have the barbeque if it either rains or is colder than 15 degrees, what is the probaility that the barbeque will go ahead? I also know that in June the probability of the temperature being less than 15 degrees and it also raining is 0.13. Give your answer to 2 decimal places<BR>\n" );
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document.write( "P(A or B) = P(A) + P(B) - P(A and B)<BR>\n" );
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document.write( "P(rain or <15) = 0.28+0.13-0.13 = 0.28<BR>\n" );
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document.write( "Therefore: P(rain or <15)' = 1- 0.28 = 0.72<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H.<BR>\n" );
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