document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=453929>Question 453929</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A coin is tossed 3 times.  What is the probability of obtaining at least 1 head? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #311790 by </B><A HREF=/tutors/aboutme.mpl?userid=htmentor><B>htmentor(1343)</B></A><img src=\"/images/stars/stars-12.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=htmentor><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=htmentor><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=311790\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> A coin is tossed 3 times.  What is the probability of obtaining at least 1 head?<BR>\n" );
document.write( "The probability of obtaining no heads, i.e. all tails is:<BR>\n" );
document.write( "1/2*1/2*1/2 = 1/8<BR>\n" );
document.write( "Therefore, the probability of obtaining at least one head is:<BR>\n" );
document.write( "1 - 1/8 = 7/8<BR>\n" );
document.write( "You can also see this by writing down all the possible outcomes. 7 of the 8 combinations will have at least one head. </SPAN>\n" );
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