document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=368927>Question 368927</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Coin Tosses: A coin is to be tossed six times.  What is the probability of obtaining exactly three heads? </SPAN>\n" );
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document.write( "exactly 3 heads means  3 times head and 3 times tail.\r<BR>\n" );
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document.write( "it can be solved by binomial probability.\r<BR>\n" );
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document.write( "probability of getting head in one toss = 1/2\r<BR>\n" );
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document.write( "and probability of getting tail in one toss = 1/2\r<BR>\n" );
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document.write( "required probability =  6C3 * (1/2)^3 * (1/2)^3 \r<BR>\n" );
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document.write( "= 20 * 1/8 * 1/8 \r<BR>\n" );
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document.write( "= 5/16\r<BR>\n" );
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