document.write( "Question 667721: One fair coin is tossed 15 times, what is the probability of getting 3 heads out of 15 tossing experiments?
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Algebra.Com's Answer #415221 by stanbon(75887)\"\" \"About 
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One fair coin is tossed 15 times, what is the probability of getting 3 heads out of 15 tossing experiments?\r
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\n" ); document.write( "Binomial Problem with n = 15 ; p(heads) = 1/2 = p(tails)
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\n" ); document.write( "P(x = 3 heads) = 15C3(1/2)^3*(1/2)^12
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\n" ); document.write( "= 455/2^15
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\n" ); document.write( "= 455/32768
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\n" ); document.write( "= 0.0139
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\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
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