document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1100449>Question 1100449</A>: <I><SPAN STYLE=\"word-break: break-all;\"> An urn B1 contains 2 white and 3 black balls and another urn B2 contains 3 white and 4 black balls. One urn is selected at random and a ball is drawn from it. If the ball drawn is found black, find the probability that the urn chosen was B1. </SPAN>\n" );
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document.write( "P((urn B1) AND (black)) = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%281%2F2%29%283%2F5%29+=+3%2F10 ALIGN=MIDDLE  ALT=\"%281%2F2%29%283%2F5%29+=+3%2F10\"   DISABLED_style= \"max-width:90%; height:auto;\" ><br><BR>\n" );
document.write( "P((urn B2) AND (black)) = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%281%2F2%29%284%2F7%29+=+2%2F7 ALIGN=MIDDLE  ALT=\"%281%2F2%29%284%2F7%29+=+2%2F7\"   DISABLED_style= \"max-width:90%; height:auto;\" ><br><BR>\n" );
document.write( "Then the probability that urn B1 was chosen, given that the ball is black, is <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%283%2F10%29%2F%28%283%2F10%29%2B%282%2F7%29%29+=+%283%2F10%29%2F%2841%2F70%29+=+21%2F41 ALIGN=MIDDLE  ALT=\"%283%2F10%29%2F%28%283%2F10%29%2B%282%2F7%29%29+=+%283%2F10%29%2F%2841%2F70%29+=+21%2F41\"   DISABLED_style= \"max-width:90%; height:auto;\" > </SPAN>\n" );
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