document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=872615>Question 872615</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Which of the following is NOT true? \r<BR>\n" );
document.write( "\n" );
document.write( "A. If an event cannot possibly occur, then the probability of the event is a negative number.<BR>\n" );
document.write( "B. If only two outcomes are possible for an experiment, then the sum of the probabilities of<BR>\n" );
document.write( "the outcomes is equal to 1.<BR>\n" );
document.write( "C. If events A and B are mutually exclusive events, then P(A Ç B) = 0.<BR>\n" );
document.write( "D. A probability must be less than or equal to 1.\r<BR>\n" );
document.write( "\n" );
document.write( "Thank you so much! </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #526261 by </B><A HREF=/tutors/aboutme.mpl?userid=jim_thompson5910><B>jim_thompson5910(35256)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=jim_thompson5910><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=526261\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Which of the following is NOT true? \r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "<font color=\"blue\">A. If an event cannot possibly occur, then the probability of the event is a negative number.</font>\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "This is false because if something can't occur (and it's guaranteed it can't), then the probability is 0. If p is a probability, then 0 <= p <= 1.\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "---------------------------------<BR>\n" );
document.write( "<font color=\"blue\">B. If only two outcomes are possible for an experiment, then the sum of the probabilities of the outcomes is equal to 1.</font>\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "This is true. All probabilities must add to 1. So cross it off the list since we want things that are not true.\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "---------------------------------<BR>\n" );
document.write( "<font color=\"blue\">C. If events A and B are mutually exclusive events, then P(A Ç B) = 0.</font>\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "I think you meant to write P(A &#8745; B) = 0. If so, then this is true if events A and B are mutually exclusive events. So just like we did with choice B, cross it off the list.\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "---------------------------------<BR>\n" );
document.write( "<font color=\"blue\">D. A probability must be less than or equal to 1.</font>\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "The probability must also be greater than or equal to 0. In other words, 0 <= p <= 1. Choice D isn't 100% true because it's missing crucial info, so I'd say it's false.\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "=================================================================================\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "So the answers are A and D. </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );