document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=272155>Question 272155</A>: <I><SPAN STYLE=\"word-break: break-all;\"> You flip a fair coin 10 times. What is the probability that it lands on heads exactly 7 times? \r<BR>\n" );
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document.write( "What is the probability that it lands on heads at least 7 times? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #199164 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=199164\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> You flip a fair coin 10 times. What is the probability that it lands on heads exactly 7 times?<BR>\n" );
document.write( "P(x = 7) = 10C7(1/2)^7(1/2)^3 = 0.1172<BR>\n" );
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document.write( "What is the probability that it lands on heads at least 7 times?<BR>\n" );
document.write( "P(7<= x <=10) = 1 - binomcdf(10,0.5,6) = 0.1719<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H. </SPAN>\n" );
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