document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=190443>Question 190443</A>: <I><SPAN STYLE=\"word-break: break-all;\"> In this question, answer to at least 3 decimal places accuracy.<BR>\n" );
document.write( "Data shows that 86% of all people are right handed. In a group of 10 people,\r<BR>\n" );
document.write( "\n" );
document.write( " what would be the expected value for the number of right handed people in the group? 8.6\r<BR>\n" );
document.write( "\n" );
document.write( "    What is the probability that exactly 8 of the people in the group are right handed? <BR>\n" );
document.write( "    What is the probability that at least 8 of the people in the group are right handed? \r<BR>\n" );
document.write( "\n" );
document.write( "thanks bunches </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #142928 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=142928\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> In this question, answer to at least 3 decimal places accuracy.<BR>\n" );
document.write( "Data shows that 86% of all people are right handed. <BR>\n" );
document.write( "In a group of 10 people, what would be the expected value for the number of right handed people in the group? 8.6 <BR>\n" );
document.write( "-------------------------------------------------<BR>\n" );
document.write( "What is the probability that exactly 8 of the people in the group are right handed? <BR>\n" );
document.write( "n=10 ; p = 0.86 ; x = 8<BR>\n" );
document.write( "P(x=8) = 10C8*(0.86)^8*(0.14)^2 = 45*0.29922*0.1960 = 0.2639<BR>\n" );
document.write( "--------------------------------------------------------------------<BR>\n" );
document.write( "What is the probability that at least 8 of the people in the group are right handed? <BR>\n" );
document.write( "P(x = 8,or 9,or,10)<BR>\n" );
document.write( "= 0.2639 + 10C9(0.86)^9(0.14)^1 + (0.86)^10 <BR>\n" );
document.write( "= 0.84547..<BR>\n" );
document.write( "----------------------<BR>\n" );
document.write( "Cheers,<BR>\n" );
document.write( "Stan H. </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );