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)![]() ![]() ![]() You can put this solution on YOUR website! One fair coin is tossed 15 times, what is the probability of getting 3 heads out of 15 tossing experiments?\r \n" ); document.write( "\n" ); document.write( "------- \n" ); document.write( "Binomial Problem with n = 15 ; p(heads) = 1/2 = p(tails) \n" ); document.write( "--------------- \n" ); document.write( "P(x = 3 heads) = 15C3(1/2)^3*(1/2)^12 \n" ); document.write( "---- \n" ); document.write( "= 455/2^15 \n" ); document.write( "--- \n" ); document.write( "= 455/32768 \n" ); document.write( "--- \n" ); document.write( "= 0.0139 \n" ); document.write( "============== \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( "=============== \n" ); document.write( " |