document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=920777>Question 920777</A>: <I><SPAN STYLE=\"word-break: break-all;\"> 62% of students in a class are male, seven of the student in the student the class are chosen at random. What is the probability that <BR>\n" );
document.write( "a) they are all females?<BR>\n" );
document.write( "b) they are all males?<BR>\n" );
document.write( "c) at least on is a female? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #558566 by </B><A HREF=/tutors/aboutme.mpl?userid=Theo><B>Theo(13342)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Theo><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/cgi-bin/show-face.mpl?user=Theo><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=558566\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> if 62% are male then 38% are female since 62 + 38 = 100%\r<BR>\n" );
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document.write( "probability of all females is equal to .38^7\r<BR>\n" );
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document.write( "probability all males is equal to .62^7\r<BR>\n" );
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document.write( "probability at least 1 female = 1 - probability all male = 1 - .62^7\r<BR>\n" );
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document.write( "^ is the symbol used for exponentiation.\r<BR>\n" );
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document.write( ".38^7 means .38 raised to the 7th power.\r<BR>\n" );
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document.write( ".38^7 = .0011 rounded to 4 decimal places.<BR>\n" );
document.write( ".62^7 = .0352 rounded to 4 decimal places.\r<BR>\n" );
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document.write( "1 - .62^7 = 1 - .0352 = .9648 rounded to 4 decimal places.\r<BR>\n" );
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document.write( ".38^7 means .38 * .38 * .38 * .38 * .38 * .38 * .38\r<BR>\n" );
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document.write( "7 instances of .38 are multiplied by each other.\r<BR>\n" );
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document.write( "the number of multiplications performed is 7 - 1 = 6.\r<BR>\n" );
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document.write( " </SPAN>\n" );
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