document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=469527>Question 469527</A>: <I><SPAN STYLE=\"word-break: break-all;\"> I asked for assistance on these problems and the answers I recieved were not correct. I figured out how to do number one but I need help on two and three.\r<BR>\n" );
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document.write( "The probability of winning is 0.45 every time you play a certain game. Suppose you play the game 10 times.  <BR>\n" );
document.write( "1.   Find the probability that you will win exactly 4 times. Round answer to three places after the decimal point.<BR>\n" );
document.write( "I got this one correct=<BR>\n" );
document.write( ".238\r<BR>\n" );
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document.write( "     <BR>\n" );
document.write( "2. Find the probability that you will win 2 or more times. Round answer to three places after the decimal point. <BR>\n" );
document.write( ".023?\r<BR>\n" );
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document.write( "3.   Find the expected number of times you will win, and the standard deviation. Round both answers to three places after the decimal point.<BR>\n" );
document.write( "4.5<BR>\n" );
document.write( "and <BR>\n" );
document.write( "1.573? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #322143 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=322143\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> The probability of winning is 0.45 every time you play a certain game. Suppose you play the game 10 times. <BR>\n" );
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document.write( "Note: Binomial Problem with n = 10 and p = 0.45<BR>\n" );
document.write( "----<BR>\n" );
document.write( "1. Find the probability that you will win exactly 4 times. Round answer to three places after the decimal point.<BR>\n" );
document.write( "I got this one correct=<BR>\n" );
document.write( ".238<BR>\n" );
document.write( "Correct<BR>\n" );
document.write( "====================== \r<BR>\n" );
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document.write( "2. Find the probability that you will win 2 or more times. Round answer to three places after the decimal point.<BR>\n" );
document.write( "P(2 <= x <= 10) = 1 - P(0<= x <=1) = 1 - 0.023 = 0.9767 <BR>\n" );
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document.write( "3. Find the expected number of times you will win, and the standard deviation. Round both answers to three places after the decimal point.<BR>\n" );
document.write( "np = 10*0.45 = 4.5<BR>\n" );
document.write( "and <BR>\n" );
document.write( "sqrt(npq) = sqrt(4.5*0.55) = 1.5732<BR>\n" );
document.write( "=========================================<BR>\n" );
document.write( "Cheers,<BR>\n" );
document.write( "Stan H.<BR>\n" );
document.write( " </SPAN>\n" );
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