document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=289851>Question 289851</A>: <I><SPAN STYLE=\"word-break: break-all;\"> If a fair coin is tossed 3 times, what is the probability of getting at least 2 heads (at least 2 heads\" means 2 or more heads)?\r<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 #209856 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=209856\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\">  If a fair coin is tossed 3 times, what is the probability of getting at least 2 heads <BR>\n" );
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document.write( "P(2<= x <=3) = P(x=2) + P(x=3)<BR>\n" );
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document.write( "= 3C2(1/2)^2(1/2) + 3C3(1/2)^3*(1/2)^0<BR>\n" );
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document.write( "= 3/8 + 1/8<BR>\n" );
document.write( "= 4/8 <BR>\n" );
document.write( "= 1/2<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H. </SPAN>\n" );
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