document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1204024>Question 1204024</A>: <I><SPAN STYLE=\"word-break: break-all;\"> An urn has 7 balls that are identical except that 3 are white and 4 are red. A sample of 4 is selected randomly without replacement.<BR>\n" );
document.write( "What is the probability that exactly 2 are white and 2 are red?\r<BR>\n" );
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document.write( "What is the probability that at least 2 of the balls are white? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #840016 by </B><A HREF=/tutors/aboutme.mpl?userid=ikleyn><B>ikleyn(52781)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=ikleyn><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=ikleyn><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=840016\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> .<BR>\n" );
document.write( "An urn has 7 balls that are identical except that 3 are white and 4 are red. <BR>\n" );
document.write( "A sample of 4 is selected randomly without replacement.<BR>\n" );
document.write( "(a) What is the probability that exactly 2 are white and 2 are red?\r<BR>\n" );
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document.write( "(b) What is the probability that at least 2 of the balls are white?<BR>\n" );
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document.write( "&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;In the post by &nbsp;@MathLover1, &nbsp;her solution and the answer for part &nbsp;(b) &nbsp;both are &nbsp;INCORRECT.\r<BR>\n" );
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document.write( "&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;I came to bring a correct solution for part &nbsp;(b).\r<BR>\n" );
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document.write( "<PRE STYLE=\"white-space: pre-wrap; white-space: -moz-pre-wrap; white-space: -pre-wrap; white-space: -o-pre-wrap; word-wrap: break-word;\">\r\n" );
document.write( "    P = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28C%5B3%5D%5E2%2AC%5B4%5D%5E2+%2B+C%5B3%5D%5E3%2AC%5B4%5D%5E1%29%2FC%5B7%5D%5E4 ALIGN=MIDDLE  ALT=\"%28C%5B3%5D%5E2%2AC%5B4%5D%5E2+%2B+C%5B3%5D%5E3%2AC%5B4%5D%5E1%29%2FC%5B7%5D%5E4\"   DISABLED_style= \"max-width:90%; height:auto;\" > = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%283%2A6%2B1%2A4%29%2F35 ALIGN=MIDDLE  ALT=\"%283%2A6%2B1%2A4%29%2F35\"   DISABLED_style= \"max-width:90%; height:auto;\" > = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=22%2F35 ALIGN=MIDDLE  ALT=\"22%2F35\"   DISABLED_style= \"max-width:90%; height:auto;\" >.    <U>ANSWER</U>\r\n" );
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document.write( "Solved (correctly).\r<BR>\n" );
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document.write( "To see many other similar &nbsp;(and different) &nbsp;problems solved, &nbsp;look into the lesson\r<BR>\n" );
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document.write( "&nbsp;&nbsp;&nbsp;&nbsp;- <A  rel=nofollow HREF=https://www.algebra.com/algebra/homework/Probability-and-statistics/Elementary-Probability-problems-related-to-Combinations.lesson>Elementary Probability problems related to combinations</A> \r<BR>\n" );
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document.write( "in this site.\r<BR>\n" );
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document.write( "Learn the subject from there.\r<BR>\n" );
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document.write( " </SPAN>\n" );
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