document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=855271>Question 855271</A>: <I><SPAN STYLE=\"word-break: break-all;\"> I'm stuck on this. Any help would be appreciated. Thank you in advance.\r<BR>\n" );
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document.write( "Based on weather forecast, it is observed that 30% of the days of the year (maxium daily) temperature is less than 15°C.<BR>\n" );
document.write( "Also, 10% of the days of the year, and rains and the temperature is less than 15°C.\r<BR>\n" );
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document.write( "i) Taking into consideration only the facts that they refer to the temperature that is less than 15°C, what is the percentage of the days that it was raining?<BR>\n" );
document.write( "ii) If the percentage of the raining days of the year is 20%, then what's the probability that the temperature is less than 15°C in a raining day? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #515213 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=515213\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Based on weather forecast, it is observed that 30% of the days of the year (maxium daily) temperature is less than 15°C.<BR>\n" );
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document.write( "Also, 10% of the days of the year it rains and the temperature is less than 15°C.<BR>\n" );
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document.write( "i) Taking into consideration only the facts that they refer to the temperature that is less than 15°C, what is the percentage of the days that it was raining?<BR>\n" );
document.write( "Ans: P(rain | < 15 degrees) = P(rain ANS <15 deg)/P(15 deg) = 0.10/0.30 = 1/3<BR>\n" );
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document.write( "ii) If the percentage of the raining days of the year is 20%, then what's the probability that the temperature is less than 15°C in a raining day?<BR>\n" );
document.write( "P(<15 AND rainy) = 0.20*0.30 = 0.06<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H.<BR>\n" );
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