document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=316832>Question 316832</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A silver dollar is flipped twice. Calculate the proability of each of the following occurring:<BR>\n" );
document.write( "a) a head on the first flip<BR>\n" );
document.write( "b) a tail on the second flip given that the first toss was a head<BR>\n" );
document.write( "c) two tails<BR>\n" );
document.write( "d) a tail on the first and a head on the second<BR>\n" );
document.write( "e) a tail on the first and a head on the second or a head on the first and a tail on the second<BR>\n" );
document.write( "e) at least one head on the two flips </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #226774 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=226774\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> A silver dollar is flipped twice. Calculate the proability of each of the following occurring:<BR>\n" );
document.write( "Note: The flip results are independent and P(H)=P(T)=1/2<BR>\n" );
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document.write( "a) a head on the first flip:: 1/2<BR>\n" );
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document.write( "b) a tail on the second flip given that the first toss was a head::1/2<BR>\n" );
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document.write( "c) two tails:::(1/2)(1/2) = 1/4<BR>\n" );
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document.write( "d) a tail on the first and a head on the second: (1/2)(1/2)= 1/4<BR>\n" );
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document.write( "e) a tail on the first and a head on the second or a head on the first and a tail on the second:::(1/2)(1/2) + (1/2)(1/2) = 2/4 = 1/2<BR>\n" );
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document.write( "e) at least one head on the two flips::: 1 - P(no heads) = 1-(1/4) = 3/4<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H.<BR>\n" );
document.write( "===============<BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );