document.write( "Question 977503: An unbiased coin is tossed 15 times. In how many ways can the coin land tails either exactly 8 times or exactly 5 times? \n" ); document.write( "

Algebra.Com's Answer #599081 by Fombitz(32388) $\"\"$ $\"About$

You can put this solution on YOUR website!
$\"P%288%29=C%2815%2C8%29%280.5%29%5E8%280.5%29%5E%2815-8%29\"$
\n" ); document.write( " $\"P%285%29=C%2815%2C5%29%280.5%29%5E5%280.5%29%5E%2815-5%29\"$
\n" ); document.write( " $\"P=P%288%29%2BP%285%29\"$
\n" ); document.write( " $\"P=C%2815%2C8%29%280.5%29%5E15%2BC%2815%2C5%29%280.5%29%5E15\"$
\n" ); document.write( " $\"P=%280.5%29%5E15%28C%2815%2C8%29%2BC%2815%2C5%29%29\"$
\n" ); document.write( " $\"P=%280.5%29%5E15%286435%2B3003%29\"$
\n" ); document.write( " $\"P=%280.5%29%5E15%289438%29\"$
\n" ); document.write( " $\"P=%280.5%29%5E14%284719%29\"$
\n" ); document.write( " $\"P=4719%2F16384\"$
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