document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1157141>Question 1157141</A>: <I><SPAN STYLE=\"word-break: break-all;\"> 2.2 Roulette wheel:  The game of roulette involves spinning a wheel with 38 slots: 18 red, 18 black, and 2 green. A ball is spun onto the wheel and will eventually land in a slot, where each slot has an equal chance of capturing the ball.\r<BR>\n" );
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document.write( "a) You watch a roulette wheel spin 9 consecutive times and the ball lands on a red slot each time. What is the probability that the ball will land on a red slot on the next spin?<BR>\n" );
document.write( " (please round to four decimal places)<BR>\n" );
document.write( "b) You watch a roulette wheel spin 220 consecutive times and the ball lands on a red slot each time. What is the probability that the ball will land on a red slot on the next spin? <BR>\n" );
document.write( " (please round to four decimal places) </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #779972 by </B><A HREF=/tutors/aboutme.mpl?userid=ikleyn><B>ikleyn(52803)</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=779972\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> .\r<BR>\n" );
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document.write( "The answer to both questions, &nbsp;a) &nbsp;and &nbsp;b), &nbsp;is in this key phrase of the condition\r<BR>\n" );
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document.write( "    \"each slot has an equal chance of capturing the ball.\"\"\r\n" );
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document.write( "It means that the result of each next experiment &nbsp;DOES &nbsp;NOT &nbsp;DEPEND &nbsp;on prehistory.\r<BR>\n" );
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document.write( "The answer for probability is  &nbsp;&nbsp;<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=18%2F38 ALIGN=MIDDLE  ALT=\"18%2F38\"   DISABLED_style= \"max-width:90%; height:auto;\" >.<BR>\n" );
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document.write( " </SPAN>\n" );
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