document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=519847>Question 519847</A>: <I><SPAN STYLE=\"word-break: break-all;\"> a coin is tossed 4 times and the sequence of heads and tails is observed:<BR>\n" );
document.write( "(a)how many different outcomes are possible<BR>\n" );
document.write( "(b)how many different outcomes have exactly 3 tails<BR>\n" );
document.write( "(c)how many different outcomes have at least 1 tail<BR>\n" );
document.write( "Please Please help me with this-thank you very very much </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #345867 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=345867\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> a coin is tossed 4 times and the sequence of heads and tails is observed:<BR>\n" );
document.write( "(a)how many different outcomes are possible<BR>\n" );
document.write( "Ans: 2^4 = 16 outcomes<BR>\n" );
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document.write( "(b)how many different outcomes have exactly 3 tails<BR>\n" );
document.write( "Ans: Same as \"how many have exactl one head\": that number is 4<BR>\n" );
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document.write( "(c)how many different outcomes have at least 1 tail<BR>\n" );
document.write( "#(at least 1 tail) = 16 - #(no tail) = 16-1 = 15<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H.<BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );