document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=149492>Question 149492</A>: <I><SPAN STYLE=\"word-break: break-all;\"> If three coins are tossed. Find the probability that no more than one coin lands heads up. Is it 5/8. 1/4, 3/8, or 1/2\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 #109689 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=109689\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> If three coins are tossed. Find the probability that no more than one coin lands heads up. Is it 5/8. 1/4, 3/8, or 1/2 \r<BR>\n" );
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document.write( "P(0 or 1 heads in 3 tosses) = P(no heads) + P(1 head) <BR>\n" );
document.write( "= (1/2)^3 + 3C1(1/2)^1*(1/2)^2 \r<BR>\n" );
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document.write( "= (1/8) + 3*(1/8) = 4/8 = 1/2<BR>\n" );
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