document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=193471>Question 193471</A>: <I><SPAN STYLE=\"word-break: break-all;\"> 2)In a group of 20 adults, 4 out of 7 women and 2out of 13 men wear glasses. What is the probability that a person chosen at random from the group is a women or someone who wear glasses.\r<BR>\n" );
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document.write( "3) A firm of charted accountants has two vacancies for trainee students. In the past , 40% of the students who were offered the training contract have not reported to join.If two students are offered training contract, what is the probability that one will join? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #145247 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=145247\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> In a group of 20 adults, 4 out of 7 women and 2 out of 13 men wear glasses. What is the probability that a person chosen at random from the group is a women or someone who wear glasses. <BR>\n" );
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document.write( "P(w or g) = P(w) + P(g) - P(w and g)<BR>\n" );
document.write( "= 7/20 + 6/20 - 4/20<BR>\n" );
document.write( "= 9/20<BR>\n" );
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document.write( "3) A firm of charted accountants has two vacancies for trainee students. In the past , 40% of the students who were offered the training contract have not reported to join.If two students are offered training contract, what is the probability that one will join?<BR>\n" );
document.write( "P(one will join) = 1 - (P(0 join) + P(both join))<BR>\n" );
document.write( "= 1 - (0.6)^2 + (0.4)^2) = 1 - 0.36 - 0.14 = 1 - 0.5 = 0.5<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H.<BR>\n" );
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